Douglas County, Minnesota · Frost dates
Douglas County frost dates.
First-frost, last-frost, and growing-season length for Douglas County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-15
- 20%
- 05-10
- 50%
- 05-02
- 80%
- 04-23
- 90%
- 04-18
First fall frost
- 10%
- 09-27
- 20%
- 09-30
- 50%
- 10-08
- 80%
- 10-17
- 90%
- 10-20
28°F — killing freeze
Last spring freeze
- 10%
- 05-04
- 20%
- 04-30
- 50%
- 04-21
- 80%
- 04-12
- 90%
- 04-08
First fall freeze
- 10%
- 10-05
- 20%
- 10-09
- 50%
- 10-19
- 80%
- 10-27
- 90%
- 10-31
Growing season length (days, 28°F threshold)
- Short year
- 154
- Median
- 181
- Long year
- 206
Source NOAA station
ALEXANDRIA MUNI AP, MN US
5.8 mi · 30 yrs of record (1991–2020) · 1416 ft elev.
Data from ALEXANDRIA MUNI AP, MN US, 5.8 miles away with 30-year NOAA record (1991-2020).
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