When is the last frost in Iowa?

It varies by location. Across Iowa, average last spring frost dates range from April 8 (Mediapolis) to May 8 (Volga). Look up your ZIP code for your local date.

Why do nearby towns have different frost dates?

Elevation, distance from large bodies of water, and whether a weather station sits in a valley, on a hill, or in a city all change how cold nights get. Each ZIP code is matched to the most representative nearby NOAA station.

Iowa frost dates

Average last spring and first fall frost (32°F) dates for 934 cities and towns in Iowa, from NOAA 1991-2020 climate normals. Average last frost dates range from April 8 in Mediapolis to May 8 in Volga. Open a ZIP code for frost risk by date and a planting calendar.

Cities with several ZIP codes use the first-listed ZIP. Open a ZIP for exact local dates.
City	Avg last frost	Avg first frost	Season	ZIP codes
Ackley	Apr 28	Oct 10	164 days	50601
Ackworth	Apr 21	Oct 15	174 days	50001
Adair	Apr 25	Oct 12	170 days	50002
Adel	Apr 25	Oct 10	166 days	50003
Afton	Apr 28	Oct 11	164 days	50830
Agency	Apr 23	Oct 14	172 days	52530
Ainsworth	Apr 28	Oct 11	165 days	52201
Akron	May 1	Oct 4	155 days	51001
Albert City	Apr 30	Oct 5	159 days	50510
Albia	Apr 24	Oct 16	173 days	52531
Albion	Apr 30	Oct 6	159 days	50005
Alburnett	May 3	Oct 7	156 days	52202
Alden	Apr 28	Oct 10	164 days	50006
Alexander	Apr 29	Oct 9	162 days	50420
Algona	Apr 30	Oct 6	160 days	50511
Alleman	Apr 23	Oct 15	173 days	50007
Allerton	Apr 21	Oct 19	178 days	50008
Allison	Apr 27	Oct 8	165 days	50602
Alta	Apr 25	Oct 13	170 days	51002
Alta Vista	May 2	Oct 5	155 days	50603
Alton	Apr 30	Oct 3	154 days	51003
Altoona	Apr 23	Oct 15	173 days	50009
Alvord	May 1	Oct 4	156 days	51230
Amana	Apr 27	Oct 11	165 days	52203, 52204
Ames	Apr 26	Oct 8	164 days	50010, 50011, 50012, 50013 +1 more
Anamosa	May 1	Oct 4	154 days	52205
Andover	Apr 13	Oct 26	195 days	52701
Andrew	Apr 25	Oct 14	171 days	52030
Anita	Apr 30	Oct 2	153 days	50020
Ankeny	Apr 23	Oct 15	173 days	50021, 50023
Anthon	May 3	Oct 1	151 days	51004
Aplington	Apr 27	Oct 8	165 days	50604
Arcadia	Apr 27	Oct 10	166 days	51430
Archer	Apr 29	Oct 10	163 days	51231
Aredale	Apr 27	Oct 8	165 days	50605
Argyle	Apr 17	Oct 22	187 days	52619
Arion	Apr 27	Oct 11	166 days	51520
Arispe	Apr 23	Oct 17	176 days	50831
Arlington	May 4	Oct 4	151 days	50606
Armstrong	May 4	Oct 1	150 days	50514
Arnolds Park	May 1	Oct 6	158 days	51331
Arthur	Apr 27	Oct 12	167 days	51431
Ashton	May 5	Oct 3	152 days	51232
Aspinwall	Apr 27	Oct 11	166 days	51432
Atalissa	Apr 18	Oct 22	184 days	52720
Atkins	Apr 27	Oct 11	165 days	52206
Atlantic	Apr 30	Oct 2	153 days	50022
Auburn	Apr 30	Oct 6	158 days	51433
Audubon	May 2	Oct 3	154 days	50025
Aurelia	May 4	Oct 4	152 days	51005
Aurora	Apr 30	Oct 7	159 days	50607
Austinville	Apr 27	Oct 8	165 days	50608
Avoca	Apr 27	Oct 9	165 days	51521
Ayrshire	Apr 27	Oct 7	164 days	50515
Badger	Apr 28	Oct 8	162 days	50516
Bagley	May 2	Oct 3	153 days	50026
Baldwin	Apr 25	Oct 14	171 days	52207
Bancroft	May 4	Oct 1	150 days	50517
Barnes City	Apr 21	Oct 16	176 days	50027
Barnum	Apr 28	Oct 8	162 days	50518
Batavia	Apr 27	Oct 12	168 days	52533
Battle Creek	Apr 27	Oct 12	167 days	51006
Baxter	Apr 22	Oct 17	174 days	50028
Bayard	May 2	Oct 3	153 days	50029
Beacon	Apr 21	Oct 16	176 days	52534
Beaman	Apr 29	Oct 9	160 days	50609
Beaver	Apr 28	Oct 12	165 days	50031
Bedford	Apr 24	Oct 15	173 days	50833
Belle Plaine	Apr 28	Oct 10	165 days	52208
Bellevue	Apr 25	Oct 16	172 days	52031
Belmond	Apr 29	Oct 7	161 days	50421
Bennett	Apr 21	Oct 15	175 days	52721
Benton	Apr 25	Oct 12	169 days	50835
Bernard	Apr 28	Oct 10	164 days	52032
Berwick	Apr 23	Oct 15	173 days	50032
Bettendorf	Apr 19	Oct 22	184 days	52722
Bevington	Apr 24	Oct 12	168 days	50033
Birmingham	Apr 27	Oct 12	168 days	52535
Blairsburg	May 3	Oct 2	150 days	50034
Blairstown	Apr 28	Oct 10	165 days	52209
Blakesburg	Apr 24	Oct 16	173 days	52536
Blanchard	Apr 25	Oct 11	168 days	51630
Blencoe	May 1	Oct 3	155 days	51523
Blockton	Apr 24	Oct 15	173 days	50836
Bloomfield	Apr 16	Oct 22	188 days	52537
Blue Grass	Apr 23	Oct 15	174 days	52726
Bode	Apr 30	Oct 6	160 days	50519
Bonaparte	Apr 26	Oct 13	169 days	52620
Bondurant	Apr 23	Oct 15	173 days	50035
Boone	Apr 28	Oct 12	165 days	50036, 50037, 50099
Booneville	Apr 18	Oct 20	184 days	50038
Bouton	Apr 25	Oct 10	166 days	50039
Boxholm	Apr 28	Oct 12	165 days	50040
Boyden	May 5	Sep 28	145 days	51234
Braddyville	Apr 25	Oct 11	168 days	51631
Bradford	Apr 29	Oct 9	162 days	50041
Bradgate	Apr 26	Oct 7	164 days	50520
Brandon	May 3	Oct 3	151 days	52210
Brayton	May 2	Oct 3	154 days	50042
Breda	Apr 27	Oct 10	166 days	51436
Bridgewater	Apr 25	Oct 12	170 days	50837
Brighton	Apr 28	Oct 11	165 days	52540
Bristow	Apr 27	Oct 8	165 days	50611
Britt	Apr 29	Oct 7	161 days	50423
Bronson	Apr 29	Oct 5	159 days	51007
Brooklyn	Apr 28	Oct 10	165 days	52211
Brunsville	Apr 30	Oct 4	157 days	51008
Bryant	Apr 13	Oct 26	195 days	52727
Buckeye	Apr 28	Oct 10	164 days	50043
Buckingham	Apr 30	Oct 9	162 days	50612
Buffalo	Apr 19	Oct 22	184 days	52728
Buffalo Center	Apr 30	Oct 7	159 days	50424
Burlington	Apr 15	Oct 20	187 days	52601
Burnside	Apr 28	Oct 8	162 days	50521
Burt	Apr 30	Oct 6	160 days	50522
Bussey	Apr 24	Oct 16	173 days	50044
Calamus	Apr 23	Oct 15	174 days	52729
Callender	Apr 28	Oct 8	162 days	50523
Calmar	May 8	Oct 1	147 days	52132
Calumet	Apr 29	Oct 10	163 days	51009
Camanche	Apr 22	Oct 16	175 days	52730
Cambridge	Apr 26	Oct 12	168 days	50046
Cantril	Apr 26	Oct 13	169 days	52542
Carbon	Apr 27	Oct 12	168 days	50839
Carlisle	Apr 18	Oct 20	184 days	50047
Carpenter	May 4	Oct 4	152 days	50426
Carroll	Apr 27	Oct 10	166 days	51401
Carson	Apr 23	Oct 14	174 days	51525
Carter Lake	Apr 18	Oct 21	185 days	51510
Cascade	Apr 28	Oct 10	164 days	52033
Casey	May 2	Oct 3	153 days	50048
Castalia	May 1	Oct 3	153 days	52133
Castana	May 3	Oct 1	151 days	51010
Cedar	Apr 23	Oct 14	172 days	52543
Cedar Falls	Apr 27	Oct 10	165 days	50613, 50614
Cedar Rapids	Apr 28	Oct 12	166 days	52401, 52402, 52403, 52404 +10 more
Center Junction	May 1	Oct 4	154 days	52212
Center Point	May 3	Oct 3	151 days	52213
Centerville	Apr 28	Oct 14	168 days	52544
Central City	May 3	Oct 7	156 days	52214
Chapin	Apr 29	Oct 9	162 days	50427
Chariton	May 5	Oct 5	151 days	50049
Charles City	Apr 30	Oct 6	157 days	50616
Charlotte	Apr 25	Oct 14	171 days	52731
Charter Oak	May 3	Oct 1	151 days	51439
Chatsworth	May 1	Oct 4	155 days	51011
Chelsea	Apr 28	Oct 10	165 days	52215
Cherokee	May 4	Oct 4	152 days	51012
Chester	May 8	Oct 1	147 days	52134
Chillicothe	Apr 23	Oct 14	172 days	52548
Churdan	Apr 26	Oct 9	164 days	50050
Cincinnati	Apr 28	Oct 14	168 days	52549
Clare	Apr 28	Oct 8	162 days	50524
Clarence	Apr 21	Oct 15	175 days	52216
Clarinda	Apr 25	Oct 11	168 days	51632
Clarion	Apr 30	Oct 10	162 days	50525, 50526
Clarksville	Apr 27	Oct 8	165 days	50619
Clear Lake	May 3	Oct 1	150 days	50428
Clearfield	Apr 24	Oct 15	173 days	50840
Cleghorn	May 4	Oct 4	152 days	51014
Clemons	Apr 24	Oct 12	170 days	50051
Clermont	May 1	Oct 3	153 days	52135
Climbing Hill	Apr 29	Oct 5	159 days	51015
Clinton	Apr 13	Oct 26	195 days	52732, 52733, 52734, 52736
Clio	Apr 21	Oct 19	178 days	50052
Clive	Apr 18	Oct 20	184 days	50325
Clutier	Apr 30	Oct 9	162 days	52217
Coggon	May 3	Oct 7	156 days	52218
Coin	Apr 20	Oct 17	179 days	51636
Colesburg	May 3	Oct 4	154 days	52035
Colfax	Apr 21	Oct 15	174 days	50054
College Springs	Apr 25	Oct 11	168 days	51637
Collins	Apr 24	Oct 12	170 days	50055
Colo	Apr 24	Oct 12	170 days	50056
Columbia	Apr 20	Oct 19	180 days	50057
Columbus City	Apr 26	Oct 10	167 days	52737
Columbus Junction	Apr 26	Oct 10	167 days	52738
Colwell	Apr 30	Oct 6	157 days	50620
Conesville	Apr 26	Oct 10	167 days	52739
Conrad	Apr 30	Oct 6	159 days	50621
Conroy	Apr 28	Oct 9	164 days	52220
Coon Rapids	Apr 27	Oct 10	166 days	50058
Cooper	Apr 26	Oct 9	164 days	50059
Coralville	Apr 21	Oct 18	180 days	52241
Corning	Apr 27	Oct 12	168 days	50841
Correctionville	Apr 27	Oct 12	167 days	51016
Corwith	Apr 29	Oct 7	161 days	50430
Corydon	Apr 21	Oct 19	178 days	50060
Coulter	Apr 29	Oct 9	162 days	50431
Council Bluffs	Apr 18	Oct 21	185 days	51501, 51502, 51503
Crawfordsville	Apr 28	Oct 11	165 days	52621
Crescent	Apr 18	Oct 21	185 days	51526
Cresco	May 8	Oct 1	147 days	52136
Creston	Apr 28	Oct 11	164 days	50801
Cromwell	Apr 28	Oct 11	164 days	50842
Crystal Lake	Apr 30	Oct 7	159 days	50432
Cumberland	Apr 30	Oct 2	153 days	50843
Cumming	Apr 18	Oct 20	184 days	50061
Curlew	Apr 27	Oct 7	164 days	50527
Cushing	Apr 27	Oct 12	167 days	51018
Cylinder	Apr 27	Oct 7	164 days	50528
Dakota City	Apr 28	Oct 8	162 days	50529
Dallas Center	Apr 25	Oct 10	166 days	50063
Dana	Apr 26	Oct 9	164 days	50064
Danbury	May 3	Oct 1	151 days	51019
Danville	Apr 15	Oct 20	187 days	52623
Davenport	Apr 19	Oct 22	184 days	52801, 52802, 52803, 52804 +5 more
Davis City	Apr 16	Oct 21	186 days	50065
Dawson	Apr 25	Oct 10	166 days	50066
Dayton	Apr 28	Oct 12	165 days	50530
De Soto	Apr 30	Oct 3	157 days	50069
De Witt	Apr 23	Oct 15	174 days	52742
Decatur	Apr 16	Oct 21	186 days	50067
Decorah	May 3	Oct 7	157 days	52101
Dedham	Apr 27	Oct 10	166 days	51440
Deep River	May 3	Oct 6	155 days	52222
Defiance	Apr 27	Oct 9	165 days	51527
Delaware	May 3	Oct 4	154 days	52036
Delhi	May 3	Oct 4	154 days	52223
Delmar	Apr 25	Oct 14	171 days	52037
Deloit	Apr 27	Oct 11	166 days	51441
Delta	Apr 24	Oct 15	172 days	52550
Denison	Apr 27	Oct 11	166 days	51442
Denmark	Apr 15	Oct 20	187 days	52624
Denver	Apr 27	Oct 10	165 days	50622
Derby	May 5	Oct 5	151 days	50068
Des Moines	Apr 23	Oct 15	173 days	50301, 50302, 50303, 50304 +53 more
Dewar	Apr 27	Oct 10	165 days	50623
Dexter	Apr 30	Oct 3	157 days	50070
Diagonal	Apr 25	Oct 12	169 days	50845
Dickens	May 1	Oct 3	154 days	51333
Dike	Apr 29	Oct 9	160 days	50624
Dixon	Apr 23	Oct 15	174 days	52745
Dolliver	May 2	Sep 30	150 days	50531
Donahue	Apr 23	Oct 15	174 days	52746
Donnellson	Apr 17	Oct 22	187 days	52625
Doon	May 1	Oct 4	156 days	51235
Dorchester	Apr 22	Oct 17	178 days	52140
Douds	Apr 26	Oct 13	169 days	52551
Dougherty	Apr 29	Oct 9	162 days	50433
Dow City	Apr 27	Oct 11	166 days	51528
Dows	Apr 29	Oct 9	162 days	50071
Drakesville	Apr 16	Oct 22	188 days	52552
Dubuque	Apr 19	Oct 21	184 days	52001, 52002, 52003, 52004 +1 more
Dumont	Apr 27	Oct 8	165 days	50625
Duncombe	Apr 28	Oct 8	162 days	50532
Dundee	May 3	Oct 4	154 days	52038
Dunkerton	Apr 27	Oct 10	165 days	50626
Dunlap	Apr 29	Oct 8	162 days	51529
Durango	Apr 28	Oct 11	165 days	52039
Durant	Apr 18	Oct 22	184 days	52747
Dyersville	May 3	Oct 4	154 days	52040
Dysart	Apr 30	Oct 9	162 days	52224
Eagle Grove	May 3	Oct 2	150 days	50533
Earlham	Apr 30	Oct 3	157 days	50072
Earling	Apr 27	Oct 9	165 days	51530
Earlville	May 3	Oct 4	154 days	52041
Early	Apr 30	Oct 6	158 days	50535
Eddyville	Apr 23	Oct 14	172 days	52553
Edgewood	May 3	Oct 4	154 days	52042
Elberon	Apr 28	Oct 10	165 days	52225
Eldon	Apr 27	Oct 12	168 days	52554
Eldora	Apr 27	Oct 10	165 days	50627
Eldridge	Apr 23	Oct 15	174 days	52748
Elgin	May 8	Oct 1	146 days	52141
Elk Horn	May 2	Oct 3	154 days	51531
Elkader	May 8	Oct 1	146 days	52043
Elkhart	Apr 23	Oct 15	173 days	50073
Elkport	May 8	Oct 1	146 days	52044
Elliott	Apr 24	Oct 13	169 days	51532
Ellston	Apr 23	Oct 17	176 days	50074
Ellsworth	May 3	Oct 2	150 days	50075
Elma	May 8	Oct 1	147 days	50628
Ely	Apr 27	Oct 11	165 days	52227
Emerson	Apr 24	Oct 13	169 days	51533
Emmetsburg	Apr 27	Oct 7	164 days	50536
Epworth	Apr 28	Oct 11	165 days	52045
Essex	Apr 20	Oct 17	179 days	51638
Estherville	May 2	Sep 30	150 days	51334
Evansdale	Apr 27	Oct 10	165 days	50707
Everly	May 2	Oct 2	154 days	51338
Exira	May 2	Oct 3	154 days	50076
Exline	Apr 28	Oct 14	168 days	52555
Fairbank	Apr 30	Oct 7	159 days	50629
Fairfax	Apr 27	Oct 11	165 days	52228
Fairfield	Apr 27	Oct 12	168 days	52556, 52557
Farley	Apr 28	Oct 11	165 days	52046
Farmersburg	May 1	Oct 3	153 days	52047
Farmington	Apr 17	Oct 22	187 days	52626
Farnhamville	Apr 26	Oct 10	167 days	50538
Farragut	Apr 20	Oct 17	179 days	51639
Fayette	May 4	Oct 4	151 days	52142
Fenton	Apr 30	Oct 6	160 days	50539
Ferguson	Apr 28	Oct 7	162 days	50078
Fertile	May 3	Oct 1	150 days	50434
Floris	Apr 16	Oct 22	188 days	52560
Floyd	Apr 30	Oct 6	157 days	50435
Fonda	Apr 26	Oct 7	164 days	50540
Fontanelle	Apr 25	Oct 12	170 days	50846
Forest City	Apr 30	Oct 7	159 days	50436
Fort Atkinson	May 3	Oct 7	157 days	52144
Fort Dodge	Apr 28	Oct 8	162 days	50501
Fort Madison	Apr 12	Oct 25	194 days	52627
Fostoria	May 1	Oct 3	154 days	51340
Fredericksburg	May 2	Oct 5	155 days	50630
Frederika	Apr 29	Oct 9	162 days	50631
Fremont	Apr 23	Oct 14	172 days	52561
Fruitland	Apr 24	Oct 14	172 days	52749
Galt	Apr 30	Oct 10	162 days	50101
Galva	Apr 27	Oct 12	167 days	51020
Garber	Apr 21	Oct 18	178 days	52048
Garden City	Apr 27	Oct 10	165 days	50102
Garden Grove	Apr 30	Oct 8	161 days	50103
Garnavillo	Apr 21	Oct 18	178 days	52049
Garner	Apr 29	Oct 7	161 days	50438
Garrison	May 3	Oct 3	151 days	52229
Garwin	Apr 30	Oct 9	162 days	50632
Geneva	Apr 29	Oct 9	162 days	50633
George	May 1	Oct 4	156 days	51237
Gibson	Apr 24	Oct 15	172 days	50104
Gifford	Apr 27	Oct 10	165 days	50259
Gilbert	Apr 26	Oct 8	164 days	50105
Gilbertville	Apr 27	Oct 10	165 days	50634
Gillett Grove	Apr 30	Oct 5	159 days	51341
Gilman	May 3	Oct 6	155 days	50106
Gilmore City	Apr 26	Oct 7	164 days	50541
Gladbrook	Apr 30	Oct 6	159 days	50635
Glenwood	Apr 23	Oct 11	170 days	51534
Glidden	Apr 27	Oct 10	166 days	51443
Goldfield	Apr 28	Oct 8	162 days	50542
Goodell	Apr 29	Oct 7	161 days	50439
Goose Lake	Apr 13	Oct 26	195 days	52750
Gowrie	Apr 26	Oct 9	164 days	50543
Graettinger	Apr 27	Oct 7	164 days	51342
Grafton	May 4	Oct 4	152 days	50440
Grand Junction	Apr 26	Oct 9	164 days	50107
Grand Mound	Apr 23	Oct 15	174 days	52751
Grand River	Apr 23	Oct 17	176 days	50108
Grandview	Apr 26	Oct 10	167 days	52752
Granger	Apr 19	Oct 18	179 days	50109
Grant	Apr 27	Oct 12	168 days	50847
Granville	May 5	Sep 28	145 days	51022
Gravity	Apr 24	Oct 15	173 days	50848
Gray	May 2	Oct 3	154 days	50110
Greeley	May 3	Oct 4	154 days	52050
Greene	Apr 27	Oct 8	165 days	50636
Greenfield	Apr 25	Oct 12	170 days	50849
Greenville	Apr 30	Oct 5	159 days	51343
Grimes	Apr 19	Oct 18	179 days	50111
Grinnell	May 3	Oct 6	155 days	50112
Griswold	Apr 30	Oct 2	153 days	51535
Grundy Center	Apr 29	Oct 9	160 days	50638
Guernsey	Apr 28	Oct 10	165 days	52221
Guthrie Center	May 2	Oct 3	153 days	50115
Guttenberg	Apr 21	Oct 18	178 days	52052
Halbur	Apr 27	Oct 10	166 days	51444
Hamburg	Apr 19	Oct 19	182 days	51640
Hamilton	Apr 20	Oct 19	180 days	50116
Hamlin	May 2	Oct 3	154 days	50117
Hampton	Apr 29	Oct 9	162 days	50441
Hancock	Apr 23	Oct 14	174 days	51536
Hanlontown	May 3	Oct 1	150 days	50444
Harcourt	Apr 26	Oct 9	164 days	50544
Hardy	Apr 28	Oct 8	162 days	50545
Harlan	Apr 27	Oct 9	165 days	51537, 51593
Harper	Apr 24	Oct 15	172 days	52231
Harpers Ferry	Apr 24	Oct 17	175 days	52146
Harris	Apr 30	Oct 10	164 days	51345
Hartford	Apr 21	Oct 15	174 days	50118
Hartley	Apr 29	Oct 10	163 days	51346
Hartwick	Apr 28	Oct 10	165 days	52232
Harvey	Apr 20	Oct 19	180 days	50119
Hastings	Apr 24	Oct 13	169 days	51540
Havelock	Apr 26	Oct 7	164 days	50546
Haverhill	Apr 28	Oct 7	162 days	50120
Hawarden	May 1	Oct 4	155 days	51023
Hawkeye	May 4	Oct 4	151 days	52147
Hayesville	Apr 24	Oct 15	172 days	52562
Hazleton	Apr 30	Oct 7	159 days	50641
Hedrick	Apr 23	Oct 14	172 days	52563
Henderson	Apr 24	Oct 13	169 days	51541
Hiawatha	Apr 28	Oct 12	166 days	52233
Highlandville	Apr 29	Oct 10	165 days	52149
Hills	Apr 29	Oct 9	162 days	52235
Hillsboro	Apr 30	Oct 10	163 days	52630
Hinton	Apr 30	Oct 4	157 days	51024
Holland	Apr 29	Oct 9	160 days	50642
Holstein	Apr 27	Oct 12	167 days	51025
Holy Cross	Apr 28	Oct 11	165 days	52053
Homestead	Apr 28	Oct 9	164 days	52236
Honey Creek	Apr 18	Oct 21	185 days	51542
Hopkinton	Apr 28	Oct 10	164 days	52237
Hornick	May 1	Oct 3	154 days	51026
Hospers	May 5	Sep 28	145 days	51238
Houghton	Apr 17	Oct 22	187 days	52631
Hubbard	Apr 27	Oct 10	165 days	50122
Hudson	Apr 27	Oct 10	165 days	50643
Hull	Apr 30	Oct 3	154 days	51239
Humboldt	Apr 27	Oct 9	166 days	50548
Humeston	Apr 21	Oct 19	178 days	50123
Huxley	Apr 26	Oct 12	168 days	50124
Ida Grove	Apr 27	Oct 12	167 days	51445
Imogene	Apr 20	Oct 17	179 days	51645
Independence	Apr 30	Oct 7	159 days	50644
Indianola	Apr 24	Oct 12	168 days	50125
Inwood	May 2	Oct 2	151 days	51240
Ionia	May 2	Oct 5	155 days	50645
Iowa City	Apr 29	Oct 9	162 days	52240, 52242, 52243, 52244 +2 more
Iowa Falls	Apr 28	Oct 10	164 days	50126
Ira	Apr 22	Oct 17	174 days	50127
Ireton	Apr 30	Oct 3	154 days	51027
Irwin	Apr 27	Oct 9	165 days	51446
Jamaica	Apr 26	Oct 9	164 days	50128
Janesville	Apr 27	Oct 10	165 days	50647
Jefferson	Apr 26	Oct 9	164 days	50129
Jesup	Apr 30	Oct 7	159 days	50648
Jewell	May 3	Oct 2	150 days	50130
Johnston	Apr 19	Oct 18	179 days	50131
Joice	Apr 30	Oct 7	159 days	50446
Jolley	Apr 26	Oct 10	167 days	50551
Kalona	Apr 21	Oct 18	180 days	52247
Kamrar	May 3	Oct 2	150 days	50132
Kanawha	Apr 29	Oct 7	161 days	50447
Kellerton	Apr 17	Oct 21	184 days	50133
Kelley	Apr 26	Oct 8	164 days	50134
Kellogg	Apr 22	Oct 17	174 days	50135
Kensett	May 4	Oct 4	152 days	50448
Keokuk	Apr 10	Oct 27	198 days	52632
Keosauqua	Apr 26	Oct 13	169 days	52565
Keota	Apr 24	Oct 15	172 days	52248
Kesley	Apr 27	Oct 8	165 days	50649
Keswick	Apr 24	Oct 15	172 days	50136
Keystone	Apr 28	Oct 10	165 days	52249
Killduff	Apr 22	Oct 17	174 days	50137
Kimballton	May 2	Oct 3	154 days	51543
Kingsley	Apr 30	Oct 4	157 days	51028
Kirkman	Apr 27	Oct 9	165 days	51447
Kirkville	Apr 23	Oct 14	172 days	52566
Kiron	Apr 27	Oct 11	166 days	51448
Klemme	Apr 29	Oct 7	161 days	50449
Knierim	Apr 26	Oct 10	167 days	50552
Knoxville	Apr 20	Oct 19	180 days	50138
La Motte	Apr 28	Oct 11	165 days	52054
La Porte City	May 3	Oct 3	151 days	50651
Lacona	May 5	Oct 5	151 days	50139
Ladora	Apr 28	Oct 10	165 days	52251
Lake City	Apr 26	Oct 10	167 days	51449
Lake Mills	Apr 30	Oct 7	159 days	50450
Lake Park	Apr 30	Oct 10	164 days	51347
Lake View	Apr 30	Oct 6	158 days	51450
Lakota	May 4	Oct 1	150 days	50451
Lamoni	Apr 17	Oct 21	184 days	50140
Lamont	Apr 30	Oct 7	159 days	50650
Lanesboro	Apr 27	Oct 10	166 days	51451
Langworthy	May 1	Oct 4	154 days	52252
Lansing	Apr 24	Oct 17	175 days	52151
Larchwood	May 1	Oct 4	156 days	51241
Larrabee	May 4	Oct 4	152 days	51029
Latimer	Apr 29	Oct 9	162 days	50452
Laurel	Apr 22	Oct 17	174 days	50141
Laurens	Apr 26	Oct 7	164 days	50554
Lawler	May 2	Oct 5	155 days	52154
Lawton	Apr 29	Oct 5	159 days	51030
Le Claire	Apr 16	Oct 25	190 days	52753
Le Grand	Apr 30	Oct 9	162 days	50142
Le Mars	Apr 30	Oct 4	157 days	51031
Ledyard	May 4	Oct 1	150 days	50556
Lehigh	May 3	Oct 2	150 days	50557
Leighton	Apr 21	Oct 16	176 days	50143
Leland	Apr 30	Oct 7	159 days	50453
Lenox	Apr 28	Oct 11	164 days	50851
Leon	Apr 30	Oct 8	161 days	50144
Lester	May 1	Oct 4	156 days	51242
Letts	Apr 26	Oct 10	167 days	52754
Lewis	Apr 30	Oct 2	153 days	51544
Liberty Center	Apr 24	Oct 12	168 days	50145
Libertyville	Apr 27	Oct 12	168 days	52567
Lidderdale	Apr 27	Oct 10	166 days	51452
Lime Springs	May 8	Oct 1	147 days	52155
Lincoln	Apr 29	Oct 9	160 days	50652
Linden	May 2	Oct 3	153 days	50146
Lineville	Apr 21	Oct 19	178 days	50147
Linn Grove	Apr 30	Oct 5	159 days	51033
Lisbon	Apr 28	Oct 12	166 days	52253
Liscomb	Apr 30	Oct 6	159 days	50148
Little Cedar	Apr 30	Oct 9	163 days	50454
Little Rock	May 5	Oct 3	152 days	51243
Little Sioux	May 1	Oct 3	155 days	51545
Livermore	Apr 30	Oct 6	160 days	50558
Lockridge	Apr 27	Oct 12	168 days	52635
Logan	Apr 29	Oct 8	162 days	51546
Lohrville	Apr 26	Oct 10	167 days	51453
Lone Rock	Apr 30	Oct 6	160 days	50559
Lone Tree	Apr 29	Oct 9	162 days	52755
Long Grove	Apr 23	Oct 15	174 days	52756
Lorimor	Apr 30	Oct 3	157 days	50149
Lost Nation	Apr 25	Oct 14	171 days	52254
Lovilia	Apr 24	Oct 16	173 days	50150
Low Moor	Apr 22	Oct 16	175 days	52757
Lowden	Apr 27	Oct 10	165 days	52255
Lu Verne	Apr 30	Oct 6	160 days	50560
Luana	May 1	Oct 3	153 days	52156
Lucas	May 5	Oct 5	151 days	50151
Luther	Apr 23	Oct 14	173 days	50152
Luxemburg	Apr 28	Oct 11	165 days	52056
Luzerne	Apr 28	Oct 10	165 days	52257
Lynnville	May 3	Oct 6	155 days	50153
Lytton	Apr 30	Oct 6	158 days	50561
Macedonia	Apr 23	Oct 14	174 days	51549
Macksburg	Apr 30	Oct 3	157 days	50155
Madrid	Apr 28	Oct 12	165 days	50156
Magnolia	Apr 29	Oct 8	162 days	51550
Malcom	May 3	Oct 6	155 days	50157
Mallard	Apr 27	Oct 7	164 days	50562
Malvern	Apr 23	Oct 11	170 days	51551
Manchester	May 3	Oct 4	154 days	52057
Manilla	Apr 27	Oct 11	166 days	51454
Manly	May 4	Oct 4	152 days	50456
Manning	May 2	Oct 3	154 days	51455
Manson	Apr 26	Oct 10	167 days	50563
Mapleton	May 3	Oct 1	151 days	51034
Maquoketa	Apr 25	Oct 14	171 days	52060
Marathon	Apr 30	Oct 5	159 days	50565
Marble Rock	Apr 30	Oct 6	157 days	50653
Marcus	May 4	Oct 4	152 days	51035
Marengo	Apr 28	Oct 9	164 days	52301
Marion	Apr 28	Oct 12	166 days	52302
Marne	Apr 30	Oct 2	153 days	51552
Marquette	Apr 28	Oct 12	166 days	52158
Marshalltown	Apr 28	Oct 7	162 days	50158
Martelle	May 1	Oct 4	154 days	52305
Martensdale	Apr 24	Oct 12	168 days	50160
Martinsburg	Apr 23	Oct 14	172 days	52568
Mason City	Apr 29	Oct 7	161 days	50401, 50402
Masonville	May 3	Oct 4	154 days	50654
Massena	Apr 30	Oct 2	153 days	50853
Matlock	May 5	Sep 28	145 days	51244
Maurice	Apr 30	Oct 3	154 days	51036
Maxwell	Apr 26	Oct 12	168 days	50161
Maynard	May 4	Oct 4	151 days	50655
Mc Callsburg	Apr 24	Oct 12	170 days	50154
Mc Causland	Apr 22	Oct 16	175 days	52758
Mc Clelland	Apr 23	Oct 14	174 days	51548
Mc Gregor	Apr 28	Oct 12	166 days	52157
Mc Intire	Apr 30	Oct 9	163 days	50455
Mechanicsville	Apr 21	Oct 15	175 days	52306
Mediapolis	Apr 8	Oct 29	202 days	52637
Melbourne	Apr 24	Oct 12	170 days	50162
Melcher Dallas	Apr 20	Oct 19	180 days	50062, 50163
Melrose	Apr 18	Oct 23	187 days	52569
Melvin	May 1	Oct 7	160 days	51350
Menlo	May 2	Oct 3	153 days	50164
Meriden	May 4	Oct 4	152 days	51037
Merrill	Apr 30	Oct 4	157 days	51038
Meservey	May 3	Oct 1	150 days	50457
Middle Amana	Apr 28	Oct 9	164 days	52307
Middletown	Apr 15	Oct 20	187 days	52638
Miles	Apr 25	Oct 16	172 days	52064
Milford	May 1	Oct 6	158 days	51351
Millersburg	Apr 28	Oct 9	164 days	52308
Millerton	Apr 21	Oct 19	178 days	50165
Milo	Apr 24	Oct 12	168 days	50166
Milton	Apr 26	Oct 13	169 days	52570
Minburn	Apr 25	Oct 10	166 days	50167
Minden	Apr 23	Oct 14	174 days	51553
Mineola	Apr 23	Oct 11	170 days	51554
Mingo	Apr 22	Oct 17	174 days	50168
Missouri Valley	Apr 29	Oct 8	162 days	51555
Mitchellville	Apr 21	Oct 15	174 days	50169
Modale	Apr 29	Oct 8	162 days	51556
Mondamin	May 1	Oct 3	155 days	51557
Monmouth	Apr 25	Oct 14	171 days	52309
Monona	May 1	Oct 3	153 days	52159
Monroe	Apr 21	Oct 15	174 days	50170
Montezuma	May 3	Oct 6	155 days	50171
Monticello	May 1	Oct 4	154 days	52310
Montour	Apr 30	Oct 9	162 days	50173
Montpelier	Apr 18	Oct 22	184 days	52759
Montrose	Apr 17	Oct 22	187 days	52639
Moorhead	May 1	Oct 3	155 days	51558
Moorland	Apr 28	Oct 8	162 days	50566
Moravia	Apr 18	Oct 23	187 days	52571
Morley	May 1	Oct 4	154 days	52312
Morning Sun	Apr 26	Oct 10	167 days	52640
Morrison	Apr 29	Oct 9	160 days	50657
Moscow	Apr 18	Oct 22	184 days	52760
Moulton	Apr 28	Oct 14	168 days	52572
Mount Auburn	May 3	Oct 3	151 days	52313
Mount Ayr	Apr 25	Oct 12	169 days	50854
Mount Pleasant	Apr 30	Oct 10	163 days	52641
Mount Sterling	Apr 26	Oct 13	169 days	52573
Mount Union	Apr 30	Oct 10	163 days	52644
Mount Vernon	Apr 28	Oct 12	166 days	52314
Moville	Apr 29	Oct 5	159 days	51039
Murray	Apr 29	Oct 9	162 days	50174
Muscatine	Apr 24	Oct 14	172 days	52761
Mystic	Apr 18	Oct 23	187 days	52574
Nashua	Apr 30	Oct 6	157 days	50658
Nemaha	Apr 30	Oct 6	158 days	50567
Neola	Apr 23	Oct 14	174 days	51559
Nevada	Apr 24	Oct 12	170 days	50201
New Albin	Apr 22	Oct 17	178 days	52160
New Hampton	May 2	Oct 5	155 days	50659
New Hartford	Apr 27	Oct 10	165 days	50660
New Liberty	Apr 21	Oct 15	175 days	52765
New London	Apr 30	Oct 10	163 days	52645
New Market	Apr 24	Oct 15	173 days	51646
New Providence	Apr 27	Oct 10	165 days	50206
New Sharon	Apr 21	Oct 16	176 days	50207
New Vienna	May 3	Oct 4	154 days	52065
New Virginia	Apr 29	Oct 9	162 days	50210
Newell	Apr 25	Oct 13	170 days	50568
Newhall	May 3	Oct 3	151 days	52315
Newton	Apr 22	Oct 17	174 days	50208
Nichols	Apr 18	Oct 22	184 days	52766
Nodaway	Apr 27	Oct 12	168 days	50857
Nora Springs	Apr 29	Oct 7	161 days	50458
North Buena Vista	Apr 21	Oct 18	178 days	52066
North English	Apr 28	Oct 9	164 days	52316
North Liberty	Apr 21	Oct 18	180 days	52317
North Washington	May 2	Oct 5	155 days	50661
Northboro	Apr 20	Oct 17	179 days	51647
Northwood	May 4	Oct 4	152 days	50459
Norwalk	Apr 18	Oct 20	184 days	50211
Norway	Apr 27	Oct 11	165 days	52318
Oakland	Apr 23	Oct 14	174 days	51560
Oakville	Apr 14	Oct 24	190 days	52646
Ocheyedan	Apr 30	Oct 10	164 days	51354
Odebolt	Apr 27	Oct 12	167 days	51458
Oelwein	Apr 30	Oct 7	159 days	50662
Ogden	Apr 28	Oct 12	165 days	50212
Okoboji	Apr 28	Oct 11	164 days	51355
Olds	Apr 30	Oct 10	163 days	52647
Olin	May 1	Oct 4	154 days	52320
Ollie	Apr 24	Oct 15	172 days	52576
Onawa	May 1	Oct 3	154 days	51040
Onslow	Apr 28	Oct 10	164 days	52321
Oran	Apr 29	Oct 9	162 days	50664
Orange City	Apr 30	Oct 3	154 days	51041
Orchard	Apr 30	Oct 9	163 days	50460
Orient	Apr 25	Oct 12	170 days	50858
Osage	Apr 30	Oct 9	163 days	50461
Osceola	Apr 29	Oct 9	162 days	50213
Oskaloosa	Apr 21	Oct 16	176 days	52577
Ossian	May 1	Oct 3	153 days	52161
Otho	Apr 28	Oct 8	162 days	50569
Otley	Apr 20	Oct 19	180 days	50214
Oto	May 3	Oct 1	151 days	51044
Ottosen	Apr 30	Oct 6	160 days	50570
Ottumwa	Apr 23	Oct 14	172 days	52501
Oxford	Apr 28	Oct 9	164 days	52322
Oxford Junction	Apr 27	Oct 10	165 days	52323
Oyens	Apr 30	Oct 4	157 days	51045
Pacific Junction	Apr 23	Oct 11	170 days	51561
Packwood	Apr 27	Oct 12	168 days	52580
Palmer	Apr 26	Oct 7	164 days	50571
Palo	Apr 28	Oct 12	166 days	52324
Panama	Apr 27	Oct 9	165 days	51562
Panora	May 2	Oct 3	153 days	50216
Parkersburg	Apr 27	Oct 8	165 days	50665
Parnell	Apr 28	Oct 9	164 days	52325
Paton	Apr 26	Oct 9	164 days	50217
Patterson	Apr 24	Oct 12	168 days	50218
Paullina	Apr 29	Oct 10	163 days	51046
Pella	Apr 20	Oct 19	180 days	50219
Peosta	Apr 28	Oct 11	165 days	52068
Percival	Apr 18	Oct 19	182 days	51648
Perry	Apr 25	Oct 10	166 days	50220
Persia	Apr 27	Oct 9	165 days	51563
Peru	Apr 30	Oct 3	157 days	50222
Peterson	Apr 30	Oct 5	159 days	51047
Pierson	Apr 27	Oct 12	167 days	51048
Pilot Grove	Apr 17	Oct 22	187 days	52648
Pilot Mound	Apr 28	Oct 12	165 days	50223
Pisgah	May 1	Oct 3	155 days	51564
Plainfield	Apr 29	Oct 9	162 days	50666
Plano	Apr 18	Oct 23	187 days	52581
Pleasant Hill	Apr 18	Oct 20	184 days	50327
Pleasant Valley	Apr 16	Oct 25	190 days	52767
Pleasantville	Apr 20	Oct 19	180 days	50225
Plover	Apr 26	Oct 7	164 days	50573
Plymouth	Apr 29	Oct 7	161 days	50464
Pocahontas	Apr 26	Oct 7	164 days	50574
Polk City	Apr 19	Oct 18	179 days	50226
Pomeroy	Apr 26	Oct 10	167 days	50575
Popejoy	Apr 28	Oct 10	164 days	50227
Portsmouth	Apr 27	Oct 9	165 days	51565
Postville	May 1	Oct 3	153 days	52162
Prairie City	Apr 21	Oct 15	174 days	50228
Prairieburg	May 3	Oct 7	156 days	52219
Prescott	Apr 27	Oct 12	168 days	50859
Preston	Apr 25	Oct 14	171 days	52069
Primghar	Apr 29	Oct 10	163 days	51245
Princeton	Apr 16	Oct 25	190 days	52768
Prole	Apr 24	Oct 12	168 days	50229
Promise City	Apr 18	Oct 23	187 days	52583
Protivin	May 8	Oct 1	147 days	52163
Pulaski	Apr 16	Oct 22	188 days	52584
Quasqueton	Apr 30	Oct 7	159 days	52326
Quimby	May 4	Oct 4	152 days	51049
Radcliffe	Apr 28	Oct 10	164 days	50230
Rake	May 4	Oct 1	150 days	50465
Ralston	Apr 27	Oct 10	166 days	51459
Randalia	May 4	Oct 4	151 days	52164
Randall	Apr 26	Oct 8	164 days	50231
Randolph	Apr 20	Oct 17	179 days	51649
Raymond	Apr 27	Oct 10	165 days	50667
Readlyn	Apr 29	Oct 9	162 days	50668
Reasnor	Apr 22	Oct 17	174 days	50232
Red Oak	Apr 24	Oct 13	169 days	51566, 51591
Redding	Apr 25	Oct 12	169 days	50860
Redfield	Apr 25	Oct 10	166 days	50233
Reinbeck	Apr 29	Oct 9	160 days	50669
Rembrandt	Apr 30	Oct 5	159 days	50576
Remsen	Apr 30	Oct 4	157 days	51050
Renwick	Apr 30	Oct 6	160 days	50577
Rhodes	Apr 24	Oct 12	170 days	50234
Riceville	Apr 30	Oct 9	163 days	50466
Richland	Apr 27	Oct 12	168 days	52585
Ricketts	Apr 25	Oct 12	170 days	51460
Ridgeway	May 8	Oct 1	147 days	52165
Ringsted	May 2	Oct 3	153 days	50578
Rippey	Apr 25	Oct 10	166 days	50235
Riverside	Apr 29	Oct 9	162 days	52327
Riverton	Apr 19	Oct 19	182 days	51650
Robins	Apr 28	Oct 12	166 days	52328
Rock Falls	Apr 29	Oct 7	161 days	50467
Rock Rapids	May 1	Oct 4	156 days	51246
Rock Valley	Apr 30	Oct 3	154 days	51247
Rockford	Apr 30	Oct 6	157 days	50468
Rockwell	Apr 29	Oct 7	161 days	50469
Rockwell City	Apr 26	Oct 10	167 days	50579
Rodney	May 3	Oct 1	151 days	51051
Roland	Apr 24	Oct 12	170 days	50236
Rolfe	Apr 26	Oct 7	164 days	50581
Rome	Apr 30	Oct 10	163 days	52642
Rose Hill	Apr 21	Oct 16	176 days	52586
Rowan	Apr 30	Oct 10	162 days	50470
Rowley	Apr 30	Oct 7	159 days	52329
Royal	May 2	Oct 2	154 days	51357
Rudd	Apr 30	Oct 9	163 days	50471
Runnells	Apr 21	Oct 15	174 days	50237
Russell	May 5	Oct 5	151 days	50238
Ruthven	May 1	Oct 3	154 days	51358
Rutland	Apr 28	Oct 8	162 days	50582
Ryan	May 3	Oct 7	156 days	52330
Sabula	May 2	Oct 7	154 days	52070
Sac City	Apr 30	Oct 6	158 days	50583
Saint Ansgar	Apr 30	Oct 9	163 days	50472
Saint Anthony	Apr 24	Oct 12	170 days	50239
Saint Charles	Apr 30	Oct 3	157 days	50240
Saint Donatus	Apr 25	Oct 16	172 days	52071
Saint Lucas	May 4	Oct 4	151 days	52166
Saint Marys	Apr 24	Oct 12	168 days	50241
Saint Olaf	May 8	Oct 1	146 days	52072
Saint Paul	Apr 17	Oct 22	187 days	52657
Salem	Apr 30	Oct 10	163 days	52649
Salix	Apr 29	Oct 5	159 days	51052
Sanborn	May 1	Oct 7	160 days	51248
Scarville	Apr 30	Oct 7	159 days	50473
Schaller	Apr 25	Oct 13	170 days	51053
Schleswig	Apr 27	Oct 11	166 days	51461
Scranton	Apr 26	Oct 9	164 days	51462
Searsboro	May 3	Oct 6	155 days	50242
Selma	Apr 26	Oct 13	169 days	52588
Sergeant Bluff	Apr 29	Oct 5	159 days	51054
Seymour	Apr 21	Oct 19	178 days	52590
Shambaugh	Apr 25	Oct 11	168 days	51651
Shannon City	Apr 23	Oct 17	176 days	50861
Sharpsburg	Apr 24	Oct 15	173 days	50862
Sheffield	Apr 29	Oct 9	162 days	50475
Shelby	Apr 27	Oct 9	165 days	51570
Sheldahl	Apr 19	Oct 18	179 days	50243
Sheldon	May 5	Sep 28	145 days	51201
Shell Rock	Apr 27	Oct 8	165 days	50670
Shellsburg	May 3	Oct 3	151 days	52332
Shenandoah	Apr 20	Oct 17	179 days	51601, 51603
Sherrill	Apr 27	Oct 11	166 days	52073
Sibley	May 5	Oct 3	152 days	51249
Sidney	Apr 19	Oct 19	182 days	51652
Sigourney	Apr 24	Oct 15	172 days	52591
Silver City	Apr 23	Oct 11	170 days	51571
Sioux Center	Apr 30	Oct 3	154 days	51250
Sioux City	Apr 29	Oct 5	159 days	51101, 51102, 51103, 51104 +5 more
Sioux Rapids	Apr 30	Oct 5	159 days	50585
Slater	Apr 26	Oct 8	164 days	50244
Sloan	Apr 29	Oct 5	159 days	51055
Smithland	May 3	Oct 1	151 days	51056
Soldier	Apr 25	Oct 12	170 days	51572
Solon	Apr 21	Oct 18	180 days	52333
Somers	Apr 26	Oct 10	167 days	50586
South Amana	Apr 28	Oct 9	164 days	52334
South English	Apr 24	Oct 15	172 days	52335
Spencer	May 1	Oct 3	154 days	51301
Sperry	Apr 15	Oct 20	187 days	52650
Spillville	May 3	Oct 7	157 days	52168
Spirit Lake	Apr 28	Oct 11	164 days	51360
Spragueville	Apr 25	Oct 14	171 days	52074
Springbrook	Apr 25	Oct 16	172 days	52075
Springville	Apr 28	Oct 12	166 days	52336
Stacyville	Apr 30	Oct 9	163 days	50476
Stanhope	May 3	Oct 2	150 days	50246
Stanley	Apr 30	Oct 7	159 days	50671
Stanton	Apr 24	Oct 13	169 days	51573
Stanwood	Apr 21	Oct 15	175 days	52337
State Center	Apr 24	Oct 12	170 days	50247
Steamboat Rock	Apr 27	Oct 10	165 days	50672
Stockport	Apr 27	Oct 12	168 days	52651
Stockton	Apr 18	Oct 22	184 days	52769
Storm Lake	Apr 25	Oct 13	170 days	50588
Story City	Apr 26	Oct 8	164 days	50248
Stout	Apr 29	Oct 9	160 days	50673
Stratford	May 3	Oct 2	150 days	50249
Strawberry Point	May 8	Oct 1	146 days	52076
Stuart	May 2	Oct 3	153 days	50250
Sully	May 3	Oct 6	155 days	50251
Sumner	Apr 29	Oct 9	162 days	50674
Superior	Apr 28	Oct 11	164 days	51363
Sutherland	Apr 29	Oct 10	163 days	51058
Swaledale	Apr 29	Oct 7	161 days	50477
Swan	Apr 21	Oct 15	174 days	50252
Swea City	May 4	Oct 1	150 days	50590
Swedesburg	Apr 30	Oct 10	163 days	52652
Swisher	Apr 27	Oct 11	165 days	52338
Tabor	Apr 19	Oct 19	182 days	51653
Tama	Apr 30	Oct 9	162 days	52339
Teeds Grove	Apr 13	Oct 26	195 days	52771
Templeton	Apr 27	Oct 10	166 days	51463
Terril	Apr 28	Oct 11	164 days	51364
Thayer	Apr 23	Oct 17	176 days	50254
Thompson	Apr 30	Oct 7	159 days	50478
Thor	Apr 28	Oct 8	162 days	50591
Thornburg	Apr 24	Oct 15	172 days	50255
Thornton	May 3	Oct 1	150 days	50479
Thurman	Apr 19	Oct 19	182 days	51654
Tiffin	Apr 21	Oct 18	180 days	52340
Tingley	Apr 23	Oct 17	176 days	50863
Tipton	Apr 21	Oct 15	175 days	52772
Titonka	Apr 30	Oct 6	160 days	50480
Toddville	Apr 28	Oct 12	166 days	52341
Toeterville	Apr 30	Oct 9	163 days	50481
Toledo	Apr 30	Oct 9	162 days	52342
Tracy	Apr 21	Oct 16	176 days	50256
Traer	Apr 30	Oct 9	162 days	50675
Treynor	Apr 23	Oct 14	174 days	51575
Tripoli	Apr 29	Oct 9	162 days	50676
Troy Mills	May 3	Oct 7	156 days	52344
Truesdale	Apr 25	Oct 13	170 days	50592
Truro	Apr 30	Oct 3	157 days	50257
Udell	Apr 18	Oct 23	187 days	52593
Underwood	Apr 23	Oct 14	174 days	51576
Union	Apr 27	Oct 10	165 days	50258
Unionville	Apr 18	Oct 23	187 days	52594
University Park	Apr 21	Oct 16	176 days	52595
Urbana	May 3	Oct 3	151 days	52345
Urbandale	Apr 19	Oct 18	179 days	50322, 50323, 50398
Ute	May 3	Oct 1	151 days	51060
Vail	Apr 27	Oct 11	166 days	51465
Van Horne	May 3	Oct 3	151 days	52346
Van Meter	Apr 18	Oct 20	184 days	50261
Van Wert	Apr 29	Oct 9	162 days	50262
Varina	Apr 26	Oct 7	164 days	50593
Ventura	May 3	Oct 1	150 days	50482
Victor	Apr 28	Oct 10	165 days	52347
Villisca	Apr 27	Oct 12	168 days	50864
Vincent	Apr 28	Oct 8	162 days	50594
Vining	Apr 28	Oct 10	165 days	52348
Vinton	May 3	Oct 3	151 days	52349
Volga	May 8	Oct 1	146 days	52077
Wadena	May 4	Oct 4	151 days	52169
Walcott	Apr 23	Oct 15	174 days	52773
Walford	Apr 27	Oct 11	165 days	52351
Walker	May 3	Oct 7	156 days	52352
Wall Lake	Apr 30	Oct 6	158 days	51466
Wallingford	May 2	Oct 3	153 days	51365
Walnut	Apr 27	Oct 9	165 days	51577
Wapello	Apr 14	Oct 24	190 days	52653
Washington	Apr 28	Oct 11	165 days	52353
Washta	May 4	Oct 4	152 days	51061
Waterloo	Apr 27	Oct 10	165 days	50701, 50702, 50703, 50704
Waterville	Apr 24	Oct 17	175 days	52170
Watkins	Apr 27	Oct 11	165 days	52354
Waucoma	May 2	Oct 5	155 days	52171
Waukee	Apr 18	Oct 20	184 days	50263
Waukon	May 2	Oct 11	161 days	52172
Waverly	Apr 29	Oct 9	162 days	50677
Wayland	Apr 28	Oct 11	165 days	52654
Webb	Apr 30	Oct 5	159 days	51366
Webster	Apr 24	Oct 15	172 days	52355
Webster City	May 3	Oct 2	150 days	50595
Weldon	Apr 29	Oct 9	162 days	50264
Wellman	Apr 28	Oct 11	165 days	52356
Wellsburg	Apr 27	Oct 10	165 days	50680
Welton	Apr 25	Oct 14	171 days	52774
Wesley	Apr 30	Oct 6	160 days	50483
West Bend	Apr 30	Oct 6	160 days	50597
West Branch	Apr 21	Oct 15	175 days	52358
West Burlington	Apr 15	Oct 20	187 days	52655
West Chester	Apr 28	Oct 11	165 days	52359
West Des Moines	Apr 18	Oct 20	184 days	50265, 50266
West Liberty	Apr 29	Oct 9	162 days	52776
West Point	Apr 17	Oct 22	187 days	52656
West Union	May 4	Oct 4	151 days	52175
Westfield	Apr 30	Oct 4	157 days	51062
Westgate	Apr 29	Oct 9	162 days	50681
Westphalia	Apr 27	Oct 9	165 days	51578
Westside	Apr 27	Oct 11	166 days	51467
Wever	Apr 12	Oct 25	194 days	52658
What Cheer	Apr 24	Oct 15	172 days	50268
Wheatland	Apr 27	Oct 10	165 days	52777
Whiting	May 1	Oct 3	154 days	51063
Whittemore	Apr 30	Oct 6	160 days	50598
Whitten	Apr 27	Oct 10	165 days	50269
Williams	May 3	Oct 2	150 days	50271
Williamsburg	Apr 28	Oct 9	164 days	52361
Williamson	May 5	Oct 5	151 days	50272
Wilton	Apr 18	Oct 22	184 days	52778
Windsor Heights	Apr 18	Oct 20	184 days	50324
Winfield	Apr 30	Oct 10	163 days	52659
Winterset	Apr 30	Oct 3	157 days	50273
Winthrop	Apr 30	Oct 7	159 days	50682
Wiota	Apr 30	Oct 2	153 days	50274
Woden	Apr 29	Oct 7	161 days	50484
Woodbine	Apr 29	Oct 8	162 days	51579
Woodburn	Apr 29	Oct 9	162 days	50275
Woodward	Apr 25	Oct 10	166 days	50276
Woolstock	May 3	Oct 2	150 days	50599
Worthington	Apr 28	Oct 10	164 days	52078
Wyoming	May 1	Oct 4	154 days	52362
Yale	May 2	Oct 3	153 days	50277
Yarmouth	Apr 30	Oct 10	163 days	52660
Yorktown	Apr 25	Oct 11	168 days	51656
Zearing	Apr 24	Oct 12	170 days	50278
Zwingle	Apr 28	Oct 11	165 days	52079

Frequently asked questions

When is the last frost in Iowa?: It varies by location. Across Iowa, average last spring frost dates range from April 8 (Mediapolis) to May 8 (Volga). Look up your ZIP code for your local date.
Why do nearby towns have different frost dates?: Elevation, distance from large bodies of water, and whether a weather station sits in a valley, on a hill, or in a city all change how cold nights get. Each ZIP code is matched to the most representative nearby NOAA station.