Douglas County, Wisconsin · Frost dates
Douglas County frost dates.
First-frost, last-frost, and growing-season length for Douglas County, Wisconsin. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-27
- 20%
- 05-21
- 50%
- 05-12
- 80%
- 05-02
- 90%
- 04-28
First fall frost
- 10%
- 09-17
- 20%
- 09-22
- 50%
- 10-02
- 80%
- 10-11
- 90%
- 10-16
28°F — killing freeze
Last spring freeze
- 10%
- 05-14
- 20%
- 05-09
- 50%
- 04-30
- 80%
- 04-21
- 90%
- 04-16
First fall freeze
- 10%
- 09-29
- 20%
- 10-03
- 50%
- 10-13
- 80%
- 10-24
- 90%
- 10-30
Growing season length (days, 28°F threshold)
- Short year
- 138
- Median
- 166
- Long year
- 197
Source NOAA station
SOLON SPRINGS, WI US
7.9 mi · 30 yrs of record (1991–2020) · 1130 ft elev.
Data from SOLON SPRINGS, WI US, 7.9 miles away with 30-year NOAA record (1991-2020).
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