Sheridan County, Wyoming · Frost dates
Sheridan County frost dates.
First-frost, last-frost, and growing-season length for Sheridan County, Wyoming. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 06-06
- 20%
- 05-31
- 50%
- 05-21
- 80%
- 05-12
- 90%
- 05-07
First fall frost
- 10%
- 09-09
- 20%
- 09-16
- 50%
- 09-23
- 80%
- 10-01
- 90%
- 10-06
28°F — killing freeze
Last spring freeze
- 10%
- 05-22
- 20%
- 05-16
- 50%
- 05-07
- 80%
- 04-29
- 90%
- 04-25
First fall freeze
- 10%
- 09-20
- 20%
- 09-24
- 50%
- 10-03
- 80%
- 10-13
- 90%
- 10-17
Growing season length (days, 28°F threshold)
- Short year
- 121
- Median
- 149
- Long year
- 175
Source NOAA station
SHERIDAN CO AP, WY US
4.4 mi · 30 yrs of record (1991–2020) · 3945 ft elev.
Data from SHERIDAN CO AP, WY US, 4.4 miles away with 30-year NOAA record (1991-2020).
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