Park County, Wyoming · Frost dates
Park County frost dates.
First-frost, last-frost, and growing-season length for Park County, Wyoming. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 06-12
- 20%
- 06-06
- 50%
- 05-27
- 80%
- 05-16
- 90%
- 05-11
First fall frost
- 10%
- 09-07
- 20%
- 09-14
- 50%
- 09-25
- 80%
- 10-04
- 90%
- 10-09
28°F — killing freeze
Last spring freeze
- 10%
- 05-26
- 20%
- 05-20
- 50%
- 05-11
- 80%
- 05-02
- 90%
- 04-27
First fall freeze
- 10%
- 09-20
- 20%
- 09-26
- 50%
- 10-05
- 80%
- 10-17
- 90%
- 10-23
Growing season length (days, 28°F threshold)
- Short year
- 117
- Median
- 147
- Long year
- 179
Source NOAA station
WAPITI 1WSW, WY US
9.0 mi · 30 yrs of record (1991–2020) · 5558 ft elev.
Data from WAPITI 1WSW, WY US, 9 miles away with 30-year NOAA record (1991-2020).
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