Crook County, Wyoming · Frost dates
Crook County frost dates.
First-frost, last-frost, and growing-season length for Crook County, Wyoming. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-30
- 20%
- 05-25
- 50%
- 05-17
- 80%
- 05-09
- 90%
- 05-06
First fall frost
- 10%
- 09-08
- 20%
- 09-13
- 50%
- 09-23
- 80%
- 10-02
- 90%
- 10-07
28°F — killing freeze
Last spring freeze
- 10%
- 05-20
- 20%
- 05-15
- 50%
- 05-06
- 80%
- 04-30
- 90%
- 04-24
First fall freeze
- 10%
- 09-17
- 20%
- 09-24
- 50%
- 10-03
- 80%
- 10-13
- 90%
- 10-17
Growing season length (days, 28°F threshold)
- Short year
- 120
- Median
- 150
- Long year
- 176
Source NOAA station
HULETT, WY US
6.9 mi · 30 yrs of record (1991–2020) · 3758 ft elev.
Data from HULETT, WY US, 6.9 miles away with 30-year NOAA record (1991-2020).
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