Carbon County, Wyoming · Frost dates
Carbon County frost dates.
First-frost, last-frost, and growing-season length for Carbon County, Wyoming. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 06-17
- 20%
- 06-11
- 50%
- 06-01
- 80%
- 05-22
- 90%
- 05-17
First fall frost
- 10%
- 09-03
- 20%
- 09-07
- 50%
- 09-15
- 80%
- 09-25
- 90%
- 09-29
28°F — killing freeze
Last spring freeze
- 10%
- 06-03
- 20%
- 05-29
- 50%
- 05-17
- 80%
- 05-07
- 90%
- 05-03
First fall freeze
- 10%
- 09-12
- 20%
- 09-17
- 50%
- 09-26
- 80%
- 10-04
- 90%
- 10-09
Growing season length (days, 28°F threshold)
- Short year
- 101
- Median
- 132
- Long year
- 159
Source NOAA station
RAWLINS MUNI AP, WY US
15.4 mi · 30 yrs of record (1991–2020) · 6736 ft elev.
Data from RAWLINS MUNI AP, WY US, 15.4 miles away with 30-year NOAA record (1991-2020).
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