Frost Dates for Headquarters, ID

Frost Dates

This location has year-round freezing temperatures.

46.63°N, -115.81°W © OpenStreetMap

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 6a

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Temperature

10° 30° 50° 70° 90°
27°
High: 35°
Avg: 27°
Low: 19°
Jan
30°
High: 39°
Avg: 30°
Low: 20°
Feb
34°
High: 46°
Avg: 34°
Low: 23°
Mar
40°
High: 52°
Avg: 40°
Low: 27°
Apr
49°
High: 63°
Avg: 49°
Low: 34°
May
55°
High: 70°
Avg: 55°
Low: 40°
Jun
62°
High: 80°
Avg: 62°
Low: 44°
Jul
61°
High: 80°
Avg: 61°
Low: 42°
Aug
53°
High: 70°
Avg: 53°
Low: 35°
Sep
42°
High: 56°
Avg: 42°
Low: 28°
Oct
33°
High: 42°
Avg: 33°
Low: 25°
Nov
26°
High: 33°
Avg: 26°
Low: 20°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.4"
5.9"
5.86"
Jan
4.0"
4.00"
Feb
5.0"
4.97"
Mar
4.3"
4.29"
Apr
5.7"
5.70"
May
4.8"
4.78"
Jun
3.2"
3.23"
Jul
2.8"
2.79"
Aug
3.0"
2.99"
Sep
4.6"
4.61"
Oct
6.1"
6.11"
Nov
6.4"
6.41"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:37 AM – 4:23 PM · 8h 45m
Feb: 6:58 AM – 5:02 PM · 10h 04m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:20 AM – 6:40 PM · 13h 21m
May: 4:36 AM – 7:24 PM · 14h 49m
Jun: 4:11 AM – 7:49 PM · 15h 37m
Jul: 4:21 AM – 7:39 PM · 15h 17m
Aug: 4:60 AM – 7:00 PM · 14h 00m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:41 AM – 5:19 PM · 10h 37m
Nov: 7:26 AM – 4:34 PM · 9h 07m
Dec: 7:49 AM – 4:11 PM · 8h 23m
Daylight Longest: 15h 39m · Shortest: 8h 21m

Nearby Stations

Pierce, IDJune 3 - September 7 Elk Rvr, IDMay 16 - September 23 Dworshak Fish Hatchery, ID April 20 - October 20 Kamiah, IDApril 29 - October 5 Nezperce, IDMay 24 - September 20 Lowell Three Rivers, ID April 16 - October 25

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