Columbia County, Wisconsin · Frost dates
Columbia County frost dates.
First-frost, last-frost, and growing-season length for Columbia County, Wisconsin. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-12
- 20%
- 05-07
- 50%
- 04-28
- 80%
- 04-19
- 90%
- 04-14
First fall frost
- 10%
- 09-26
- 20%
- 10-01
- 50%
- 10-10
- 80%
- 10-18
- 90%
- 10-23
28°F — killing freeze
Last spring freeze
- 10%
- 04-30
- 20%
- 04-26
- 50%
- 04-16
- 80%
- 04-07
- 90%
- 04-04
First fall freeze
- 10%
- 10-06
- 20%
- 10-13
- 50%
- 10-22
- 80%
- 10-30
- 90%
- 11-04
Growing season length (days, 28°F threshold)
- Short year
- 159
- Median
- 189
- Long year
- 214
Source NOAA station
PORTAGE WWTP, WI US
6.7 mi · 30 yrs of record (1991–2020) · 785 ft elev.
Data from PORTAGE WWTP, WI US, 6.7 miles away with 30-year NOAA record (1991-2020).
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