St. Croix County, Wisconsin · Frost dates
St. Croix County frost dates.
First-frost, last-frost, and growing-season length for St. Croix County, Wisconsin. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-21
- 20%
- 05-16
- 50%
- 05-06
- 80%
- 04-28
- 90%
- 04-21
First fall frost
- 10%
- 09-18
- 20%
- 09-23
- 50%
- 10-02
- 80%
- 10-12
- 90%
- 10-17
28°F — killing freeze
Last spring freeze
- 10%
- 05-12
- 20%
- 05-06
- 50%
- 04-26
- 80%
- 04-15
- 90%
- 04-09
First fall freeze
- 10%
- 09-26
- 20%
- 10-01
- 50%
- 10-12
- 80%
- 10-23
- 90%
- 10-28
Growing season length (days, 28°F threshold)
- Short year
- 137
- Median
- 169
- Long year
- 202
Source NOAA station
BALDWIN, WI US
5.3 mi · 30 yrs of record (1991–2020) · 1100 ft elev.
Data from BALDWIN, WI US, 5.3 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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