Pierce County, Wisconsin · Frost dates
Pierce County frost dates.
First-frost, last-frost, and growing-season length for Pierce 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%
- 05-22
- 50%
- 05-13
- 80%
- 05-03
- 90%
- 04-29
First fall frost
- 10%
- 09-15
- 20%
- 09-20
- 50%
- 09-29
- 80%
- 10-07
- 90%
- 10-11
28°F — killing freeze
Last spring freeze
- 10%
- 05-17
- 20%
- 05-12
- 50%
- 05-02
- 80%
- 04-23
- 90%
- 04-19
First fall freeze
- 10%
- 09-25
- 20%
- 09-30
- 50%
- 10-08
- 80%
- 10-17
- 90%
- 10-22
Growing season length (days, 28°F threshold)
- Short year
- 131
- Median
- 159
- Long year
- 186
Source NOAA station
ELLSWORTH 1E, WI US
1.6 mi · 30 yrs of record (1991–2020) · 1030 ft elev.
Data from ELLSWORTH 1E, WI US, 1.6 miles away with 30-year NOAA record (1991-2020).
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