Mower County, Minnesota · Frost dates
Mower County frost dates.
First-frost, last-frost, and growing-season length for Mower County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-18
- 20%
- 05-14
- 50%
- 05-06
- 80%
- 04-29
- 90%
- 04-23
First fall frost
- 10%
- 09-17
- 20%
- 09-21
- 50%
- 10-01
- 80%
- 10-09
- 90%
- 10-13
28°F — killing freeze
Last spring freeze
- 10%
- 05-10
- 20%
- 05-05
- 50%
- 04-27
- 80%
- 04-17
- 90%
- 04-11
First fall freeze
- 10%
- 09-25
- 20%
- 09-30
- 50%
- 10-09
- 80%
- 10-18
- 90%
- 10-23
Growing season length (days, 28°F threshold)
- Short year
- 138
- Median
- 165
- Long year
- 195
Source NOAA station
GRAND MEADOW, MN US
10.1 mi · 30 yrs of record (1991–2020) · 1350 ft elev.
Data from GRAND MEADOW, MN US, 10.1 miles away with 30-year NOAA record (1991-2020).
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