Campbell County, Wyoming · Frost dates
Campbell County frost dates.
First-frost, last-frost, and growing-season length for Campbell County, Wyoming. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-27
- 20%
- 05-24
- 50%
- 05-15
- 80%
- 05-06
- 90%
- 05-01
First fall frost
- 10%
- 09-15
- 20%
- 09-21
- 50%
- 10-01
- 80%
- 10-09
- 90%
- 10-14
28°F — killing freeze
Last spring freeze
- 10%
- 05-15
- 20%
- 05-11
- 50%
- 05-02
- 80%
- 04-24
- 90%
- 04-18
First fall freeze
- 10%
- 09-26
- 20%
- 10-01
- 50%
- 10-10
- 80%
- 10-18
- 90%
- 10-23
Growing season length (days, 28°F threshold)
- Short year
- 134
- Median
- 161
- Long year
- 188
Source NOAA station
GILLETTE 4SE, WY US
6.2 mi · 30 yrs of record (1991–2020) · 4640 ft elev.
Data from GILLETTE 4SE, WY US, 6.2 miles away with 30-year NOAA record (1991-2020).
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