Frost Dates for Moose, WY

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. June 20
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. August 31
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost June 27
First Fall Frost August 25

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze June 2
First Fall Hard Freeze September 13
43.65°N, -110.72°W © OpenStreetMap

Growing Season

72 Days June 20 to August 31

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

Learn more

Temperature

0° 30° 60° 90°
14°
High: 27°
Avg: 14°
Low: 1°
Jan
19°
High: 32°
Avg: 19°
Low: 6°
Feb
28°
High: 42°
Avg: 28°
Low: 15°
Mar
37°
High: 50°
Avg: 37°
Low: 24°
Apr
47°
High: 62°
Avg: 47°
Low: 33°
May
55°
High: 71°
Avg: 55°
Low: 39°
Jun
63°
High: 82°
Avg: 63°
Low: 44°
Jul
61°
High: 81°
Avg: 61°
Low: 42°
Aug
53°
High: 71°
Avg: 53°
Low: 34°
Sep
40°
High: 56°
Avg: 40°
Low: 25°
Oct
27°
High: 39°
Avg: 27°
Low: 15°
Nov
16°
High: 28°
Avg: 16°
Low: 4°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 3" 3.5"
3.0"
3.03"
Jan
2.7"
2.68"
Feb
3.1"
3.06"
Mar
3.3"
3.26"
Apr
3.1"
3.10"
May
2.8"
2.81"
Jun
2.5"
2.48"
Jul
2.2"
2.23"
Aug
2.8"
2.78"
Sep
3.1"
3.13"
Oct
3.5"
3.52"
Nov
3.1"
3.09"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h15h15h14h12h11h9h9h
Jan: 7:27 AM – 4:33 PM · 9h 06m
Feb: 6:52 AM – 5:08 PM · 10h 16m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:24 AM – 6:36 PM · 13h 13m
May: 4:44 AM – 7:16 PM · 14h 32m
Jun: 4:23 AM – 7:37 PM · 15h 14m
Jul: 4:32 AM – 7:28 PM · 14h 57m
Aug: 5:06 AM – 6:54 PM · 13h 48m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:37 AM – 5:23 PM · 10h 46m
Nov: 7:17 AM – 4:43 PM · 9h 25m
Dec: 7:37 AM – 4:23 PM · 8h 46m
Daylight Longest: 15h 16m · Shortest: 8h 44m

Nearby Stations

Moose 1 Nne, WY June 24 - August 28 Jackson, WY Moran 5wnw, WY Alta 1 Nnw, WY June 14 - September 11 Driggs, IDJune 13 - September 9 Tetonia Exp Stn, ID June 15 - September 7

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