FrostDateByZip

Frost dates for 83523Craigmont, ID

The average last spring frost in Craigmont is May 23 and the average first fall frost is September 25, giving a typical growing season of about 121 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
May 23

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

Average first fall frost
Sep 25

Possible by Sep 7 (1-in-10 risk)

Growing season
121 days

Last frost typically in 201 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)Jun 1 · Jun 18 · Jul 12Aug 21 · Sep 8 · Sep 2680 days100%
Frost / freeze (32°F)May 4 · May 23 · Jun 19Sep 7 · Sep 25 · Oct 10121 days100%
Hard freeze (28°F)Apr 13 · May 2 · May 24Sep 21 · Oct 9 · Oct 28160 days100%

Planting calendar for Craigmont

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 22 – Jun 28
TomatoesTransplant outdoorsJun 8 – Jun 5
PeppersStart seeds indoorsApr 22 – May 23
PeppersTransplant outdoorsJun 22 – Jul 23
EggplantStart seeds indoorsMay 9 – Jun 7
EggplantTransplant outdoorsJun 22 – Jul 23
CucumbersSow outdoorsJun 22 – Jun 15
Summer squashSow outdoorsJun 8 – Jul 23
Winter squash & pumpkinsSow outdoorsJun 22 – Jul 23
Snap beansSow outdoorsJun 8 – Jul 8
Sweet cornSow outdoorsJun 8 – Jun 5
Watermelon & cantaloupeSow outdoorsJun 22 – Jul 23
OkraSow outdoorsJun 15 – Jul 8
PeasSow outdoors (spring)Apr 22 – Jun 7
PotatoesPlant outdoors (spring)Apr 22 – Jun 22
OnionsStart seeds indoors (spring)Mar 11 – Apr 7
OnionsTransplant outdoors (spring)May 9 – Jun 7
BroccoliStart seeds indoors (spring)Apr 4 – May 8
BroccoliTransplant outdoors (spring)May 9 – Jun 7
BroccoliStart seeds indoors (fall)May 26 – Jun 5
BroccoliTransplant outdoors (fall)Jun 25 – Jul 6
CabbageStart seeds indoors (spring)Mar 25 – Apr 22
CabbageTransplant outdoors (spring)Apr 22 – May 23
CabbageStart seeds indoors (fall)May 16 – Jun 15
CabbageTransplant outdoors (fall)Jun 15 – Jul 16
Leaf lettuceSow outdoors (spring)Apr 22 – Jul 8
Leaf lettuceSow outdoors (fall)Jun 15 – Aug 1
SpinachSow outdoors (spring)Apr 15 – May 29
SpinachSow outdoors (fall)Jul 2 – Aug 6
RadishesSow outdoors (spring)Apr 22 – Jun 12
RadishesSow outdoors (fall)Jun 15 – Aug 16
KaleSow outdoors (spring)May 9 – May 29
KaleSow outdoors (fall)Jun 8 – Jul 16
CarrotsSow outdoors (spring)May 23 – Jul 8
CarrotsSow outdoors (fall)May 16 – Jul 1
GarlicPlant outdoors (fall)Sep 15 – Oct 16

Where these dates come from

ZIP code 83523 is matched to the NOAA station Winchester, ID, 12 km away, at 3,972 ft elevation (222 ft higher than the ZIP code's center). Nearby stations for comparison:

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

Frost dates near Craigmont

Frequently asked questions

When is the last frost in Craigmont, ID?
For ZIP code 83523, the average last spring frost (32°F) is May 23, based on NOAA 1991-2020 climate normals for the Winchester, ID weather station. There is a 1-in-10 chance of a frost after June 19.
When is the first frost in Craigmont, ID?
The average first fall frost (32°F) is September 25. There is a 1-in-10 chance of frost by September 7, so tender plants are at risk from that point on.
How long is the growing season in 83523?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 121 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.