Cottonwood County, Minnesota · Frost dates
Cottonwood County frost dates.
First-frost, last-frost, and growing-season length for Cottonwood County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-13
- 20%
- 05-08
- 50%
- 04-30
- 80%
- 04-21
- 90%
- 04-15
First fall frost
- 10%
- 09-25
- 20%
- 09-29
- 50%
- 10-10
- 80%
- 10-20
- 90%
- 10-24
28°F — killing freeze
Last spring freeze
- 10%
- 05-03
- 20%
- 04-30
- 50%
- 04-19
- 80%
- 04-08
- 90%
- 04-04
First fall freeze
- 10%
- 10-02
- 20%
- 10-10
- 50%
- 10-21
- 80%
- 10-29
- 90%
- 11-02
Growing season length (days, 28°F threshold)
- Short year
- 152
- Median
- 185
- Long year
- 212
Source NOAA station
WINDOM, MN US
9.8 mi · 30 yrs of record (1991–2020) · 1384 ft elev.
Data from WINDOM, MN US, 9.8 miles away with 30-year NOAA record (1991-2020).
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