Frost Dates for Island Park, ID

Frost Dates

This location has year-round freezing temperatures.

44.42°N, -111.37°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 4a

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Temperature

0° 20° 40° 60° 80°
16°
High: 27°
Avg: 16°
Low: 6°
Jan
19°
High: 30°
Avg: 19°
Low: 8°
Feb
27°
High: 39°
Avg: 27°
Low: 15°
Mar
35°
High: 47°
Avg: 35°
Low: 23°
Apr
45°
High: 59°
Avg: 45°
Low: 32°
May
53°
High: 67°
Avg: 53°
Low: 38°
Jun
60°
High: 77°
Avg: 60°
Low: 43°
Jul
59°
High: 77°
Avg: 59°
Low: 40°
Aug
50°
High: 68°
Avg: 50°
Low: 32°
Sep
38°
High: 51°
Avg: 38°
Low: 24°
Oct
25°
High: 36°
Avg: 25°
Low: 14°
Nov
16°
High: 26°
Avg: 16°
Low: 6°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.3"
4.8"
4.83"
Jan
4.5"
4.48"
Feb
4.8"
4.79"
Mar
4.4"
4.44"
Apr
5.6"
5.58"
May
5.4"
5.37"
Jun
3.8"
3.81"
Jul
3.9"
3.87"
Aug
4.6"
4.60"
Sep
6.3"
6.35"
Oct
5.5"
5.45"
Nov
4.8"
4.77"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h15h15h14h12h11h9h9h
Jan: 7:30 AM – 4:30 PM · 9h 01m
Feb: 6:54 AM – 5:06 PM · 10h 13m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:23 AM – 6:37 PM · 13h 15m
May: 4:42 AM – 7:18 PM · 14h 36m
Jun: 4:20 AM – 7:40 PM · 15h 20m
Jul: 4:29 AM – 7:31 PM · 15h 02m
Aug: 5:04 AM – 6:56 PM · 13h 51m
Sep: 5:51 AM – 6:09 PM · 12h 17m
Oct: 6:38 AM – 5:22 PM · 10h 44m
Nov: 7:20 AM – 4:40 PM · 9h 21m
Dec: 7:40 AM – 4:20 PM · 8h 40m
Daylight Longest: 15h 21m · Shortest: 8h 39m

Nearby Stations

W Yellowstone Gateway, MT Ashton 1n, ID May 21 - September 21 Lakeview, MT Old Faithful, WY Hebgen Dam, MT June 15 - September 10 Saint Anthony, ID May 17 - September 22

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