FrostDateByZip

Frost dates for 83548Reubens, ID

The average last spring frost in Reubens is May 24 and the average first fall frost is September 20, giving a typical growing season of about 116 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
May 24

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

Average first fall frost
Sep 20

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

Growing season
116 days

Last frost typically in 202 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)——70 days100%
Frost / freeze (32°F)May 6 · May 24 · Jun 19Sep 1 · Sep 20 · Oct 5116 days100%
Hard freeze (28°F)Apr 19 · May 5 · May 25Sep 13 · Oct 2 · Oct 19149 days100%

Planting calendar for Reubens

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 23 – Jun 29
TomatoesTransplant outdoorsJun 9 – May 31
PeppersStart seeds indoorsApr 23 – May 24
PeppersTransplant outdoorsJun 23 – Jul 24
EggplantStart seeds indoorsMay 10 – Jun 8
EggplantTransplant outdoorsJun 23 – Jul 24
CucumbersSow outdoorsJun 23 – Jun 10
Summer squashSow outdoorsJun 9 – Jul 24
Winter squash & pumpkinsSow outdoorsJun 23 – Jul 24
Snap beansSow outdoorsJun 9 – Jul 3
Sweet cornSow outdoorsJun 9 – May 31
Watermelon & cantaloupeSow outdoorsJun 23 – Jul 24
OkraSow outdoorsJun 16 – Jul 9
PeasSow outdoors (spring)Apr 23 – Jun 8
PotatoesPlant outdoors (spring)Apr 23 – Jun 23
OnionsStart seeds indoors (spring)Mar 12 – Apr 8
OnionsTransplant outdoors (spring)May 10 – Jun 8
BroccoliStart seeds indoors (spring)Apr 5 – May 9
BroccoliTransplant outdoors (spring)May 10 – Jun 8
BroccoliStart seeds indoors (fall)May 21 – May 31
BroccoliTransplant outdoors (fall)Jun 20 – Jul 1
CabbageStart seeds indoors (spring)Mar 26 – Apr 23
CabbageTransplant outdoors (spring)Apr 23 – May 24
CabbageStart seeds indoors (fall)May 11 – Jun 10
CabbageTransplant outdoors (fall)Jun 10 – Jul 11
Leaf lettuceSow outdoors (spring)Apr 23 – Jul 9
Leaf lettuceSow outdoors (fall)Jun 10 – Jul 27
SpinachSow outdoors (spring)Apr 16 – May 30
SpinachSow outdoors (fall)Jun 27 – Aug 1
RadishesSow outdoors (spring)Apr 23 – Jun 13
RadishesSow outdoors (fall)Jun 10 – Aug 11
KaleSow outdoors (spring)May 10 – May 30
KaleSow outdoors (fall)Jun 3 – Jul 11
CarrotsSow outdoors (spring)May 24 – Jul 9
CarrotsSow outdoors (fall)May 11 – Jun 26
GarlicPlant outdoors (fall)Sep 10 – Oct 11

Where these dates come from

ZIP code 83548 is matched to the NOAA station Nezperce, ID, 25.1 km away, at 3,248 ft elevation (223 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Nezperce, ID (used)3,248 ftMay 24Sep 20
Winchester, ID3,972 ftMay 23Sep 25
Dworshak Fish Hatchery, ID995 ftApr 20Oct 20
Cottonwood 2 Wsw, ID3,945 ftMay 6Oct 13

Frost dates near Reubens

Frequently asked questions

When is the last frost in Reubens, ID?
For ZIP code 83548, the average last spring frost (32°F) is May 24, based on NOAA 1991-2020 climate normals for the Nezperce, ID weather station. There is a 1-in-10 chance of a frost after June 19.
When is the first frost in Reubens, ID?
The average first fall frost (32°F) is September 20. There is a 1-in-10 chance of frost by September 1, so tender plants are at risk from that point on.
How long is the growing season in 83548?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 116 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.