Frost Dates for Lander 11 Sse, 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. May 13
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. October 2
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 May 20
First Fall Frost September 28

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 1
First Fall Hard Freeze October 13
42.68°N, -108.67°W © OpenStreetMap

Growing Season

142 Days May 13 to October 2

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 5b

Learn more

Temperature

10° 30° 50° 70° 90°
24°
High: 35°
Avg: 24°
Low: 13°
Jan
26°
High: 37°
Avg: 26°
Low: 16°
Feb
36°
High: 48°
Avg: 36°
Low: 25°
Mar
43°
High: 55°
Avg: 43°
Low: 31°
Apr
52°
High: 65°
Avg: 52°
Low: 40°
May
63°
High: 77°
Avg: 63°
Low: 48°
Jun
71°
High: 86°
Avg: 71°
Low: 56°
Jul
70°
High: 85°
Avg: 70°
Low: 55°
Aug
60°
High: 74°
Avg: 60°
Low: 46°
Sep
46°
High: 58°
Avg: 46°
Low: 33°
Oct
34°
High: 44°
Avg: 34°
Low: 23°
Nov
24°
High: 34°
Avg: 24°
Low: 14°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 1" 2" 2.8"
1.4"
1.44"
Jan
1.4"
1.40"
Feb
1.8"
1.78"
Mar
2.1"
2.10"
Apr
2.2"
2.19"
May
1.5"
1.49"
Jun
1.0"
1.00"
Jul
0.8"
0.75"
Aug
2.4"
2.37"
Sep
2.8"
2.75"
Oct
1.6"
1.55"
Nov
1.8"
1.76"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h14h15h15h14h12h11h10h9h
Jan: 7:24 AM – 4:36 PM · 9h 12m
Feb: 6:50 AM – 5:10 PM · 10h 19m
Mar: 6:10 AM – 5:50 PM · 11h 39m
Apr: 5:25 AM – 6:35 PM · 13h 10m
May: 4:47 AM – 7:13 PM · 14h 26m
Jun: 4:26 AM – 7:34 PM · 15h 07m
Jul: 4:35 AM – 7:25 PM · 14h 51m
Aug: 5:08 AM – 6:52 PM · 13h 45m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:36 AM – 5:24 PM · 10h 48m
Nov: 7:15 AM – 4:45 PM · 9h 31m
Dec: 7:34 AM – 4:26 PM · 8h 53m
Daylight Longest: 15h 09m · Shortest: 8h 51m

Nearby Stations

Lander Hunt Fld AP, WY May 18 - September 27 Atlantic City, WY South Pass City, WY Riverton, WYMay 16 - September 28 Riverton, WYMay 12 - September 24 Pavillion, WY May 14 - September 30

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