Frost Dates for Jackson, MT

Frost Dates

This location has year-round freezing temperatures.

45.37°N, -113.41°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 4b

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Temperature

0° 20° 40° 60° 80°
18°
High: 28°
Avg: 18°
Low: 8°
Jan
20°
High: 31°
Avg: 20°
Low: 8°
Feb
27°
High: 39°
Avg: 27°
Low: 16°
Mar
35°
High: 46°
Avg: 35°
Low: 23°
Apr
44°
High: 57°
Avg: 44°
Low: 31°
May
52°
High: 66°
Avg: 52°
Low: 37°
Jun
59°
High: 77°
Avg: 59°
Low: 42°
Jul
57°
High: 76°
Avg: 57°
Low: 39°
Aug
49°
High: 66°
Avg: 49°
Low: 32°
Sep
38°
High: 51°
Avg: 38°
Low: 25°
Oct
25°
High: 36°
Avg: 25°
Low: 15°
Nov
17°
High: 27°
Avg: 17°
Low: 8°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3" 3.3"
1.7"
1.66"
Jan
1.5"
1.47"
Feb
1.6"
1.57"
Mar
2.0"
1.96"
Apr
3.0"
2.96"
May
3.3"
3.30"
Jun
3.1"
3.10"
Jul
2.8"
2.82"
Aug
3.0"
3.00"
Sep
3.0"
2.98"
Oct
2.3"
2.31"
Nov
1.7"
1.71"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h15h15h14h12h11h9h9h
Jan: 7:33 AM – 4:27 PM · 8h 54m
Feb: 6:55 AM – 5:05 PM · 10h 09m
Mar: 6:11 AM – 5:49 PM · 11h 37m
Apr: 5:21 AM – 6:39 PM · 13h 17m
May: 4:39 AM – 7:21 PM · 14h 41m
Jun: 4:16 AM – 7:44 PM · 15h 27m
Jul: 4:26 AM – 7:34 PM · 15h 08m
Aug: 5:02 AM – 6:58 PM · 13h 55m
Sep: 5:51 AM – 6:09 PM · 12h 18m
Oct: 6:39 AM – 5:21 PM · 10h 41m
Nov: 7:22 AM – 4:38 PM · 9h 15m
Dec: 7:44 AM – 4:16 PM · 8h 33m
Daylight Longest: 15h 29m · Shortest: 8h 32m

Nearby Stations

Wisdom, MT Dillon 18 Wsw, MT Salmon-Ksra, ID May 17 - September 24 Gibbonsville #2, ID June 1 - September 17 Glen 4 N, MT Wise Rvr 3 Wnw, MT

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