FrostDateByZip

Frost dates for 58081Wyndmere, ND

The average last spring frost in Wyndmere is May 6 and the average first fall frost is September 29, giving a typical growing season of about 145 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
May 6

Safer after May 19 (1-in-10 risk)

Average first fall frost
Sep 29

Possible by Sep 18 (1-in-10 risk)

Growing season
145 days

Last frost typically in 184 days

Frost risk by date

NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
TemperatureLast spring: 90% / 50% / 10% chanceFirst fall: 10% / 50% / 90% chanceGrowing season (50%)Years with at least one
Light frost (36°F)May 3 · May 16 · May 28Sep 10 · Sep 21 · Oct 2128 days100%
Frost / freeze (32°F)Apr 24 · May 6 · May 19Sep 18 · Sep 29 · Oct 11145 days100%
Hard freeze (28°F)Apr 14 · Apr 29 · May 11Sep 25 · Oct 8 · Oct 21161 days100%

Planting calendar for Wyndmere

Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.

CropTaskWindow
TomatoesStart seeds indoorsApr 5 – Jun 11
TomatoesTransplant outdoorsMay 22 – Jun 9
PeppersStart seeds indoorsApr 5 – May 6
PeppersTransplant outdoorsJun 5 – Jul 6
EggplantStart seeds indoorsApr 22 – May 21
EggplantTransplant outdoorsJun 5 – Jul 6
CucumbersSow outdoorsJun 5 – Jun 19
Summer squashSow outdoorsMay 22 – Jul 6
Winter squash & pumpkinsSow outdoorsJun 5 – Jul 6
Snap beansSow outdoorsMay 22 – Jul 12
Sweet cornSow outdoorsMay 22 – Jun 9
Watermelon & cantaloupeSow outdoorsJun 5 – Jul 6
OkraSow outdoorsMay 29 – Jun 21
PeasSow outdoors (spring)Apr 5 – May 21
PotatoesPlant outdoors (spring)Apr 5 – Jun 5
OnionsStart seeds indoors (spring)Feb 22 – Mar 21
OnionsTransplant outdoors (spring)Apr 22 – May 21
BroccoliStart seeds indoors (spring)Mar 18 – Apr 21
BroccoliTransplant outdoors (spring)Apr 22 – May 21
BroccoliStart seeds indoors (fall)May 30 – Jun 9
BroccoliTransplant outdoors (fall)Jun 29 – Jul 10
CabbageStart seeds indoors (spring)Mar 8 – Apr 5
CabbageTransplant outdoors (spring)Apr 5 – May 6
CabbageStart seeds indoors (fall)May 20 – Jun 19
CabbageTransplant outdoors (fall)Jun 19 – Jul 20
Leaf lettuceSow outdoors (spring)Apr 5 – Jun 21
Leaf lettuceSow outdoors (fall)Jun 19 – Aug 5
SpinachSow outdoors (spring)Mar 29 – May 12
SpinachSow outdoors (fall)Jul 6 – Aug 10
RadishesSow outdoors (spring)Apr 5 – May 26
RadishesSow outdoors (fall)Jun 19 – Aug 20
KaleSow outdoors (spring)Apr 22 – May 12
KaleSow outdoors (fall)Jun 12 – Jul 20
CarrotsSow outdoors (spring)May 6 – Jun 21
CarrotsSow outdoors (fall)May 20 – Jul 5
GarlicPlant outdoors (fall)Sep 19 – Oct 20

Where these dates come from

ZIP code 58081 is matched to the NOAA station Mc Leod 3 E, ND, 14.2 km away, at 1,075 ft elevation (12 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Mc Leod 3 E, ND (used)1,075 ftMay 6Sep 29
Lidgerwood, ND1,125 ftMay 2Oct 6
Forman 5 Sse, ND1,250 ftMay 7Oct 1
Lisbon, ND1,149 ftMay 12Sep 27

Frost dates near Wyndmere

Frequently asked questions

When is the last frost in Wyndmere, ND?
For ZIP code 58081, the average last spring frost (32°F) is May 6, based on NOAA 1991-2020 climate normals for the Mc Leod 3 E, ND weather station. There is a 1-in-10 chance of a frost after May 19.
When is the first frost in Wyndmere, ND?
The average first fall frost (32°F) is September 29. There is a 1-in-10 chance of frost by September 18, so tender plants are at risk from that point on.
How long is the growing season in 58081?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 145 days long.
Are these frost dates a forecast?
No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.