Martin County, Minnesota · Frost dates
Martin County frost dates.
First-frost, last-frost, and growing-season length for Martin County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-06
- 20%
- 05-02
- 50%
- 04-25
- 80%
- 04-16
- 90%
- 04-12
First fall frost
- 10%
- 09-30
- 20%
- 10-04
- 50%
- 10-14
- 80%
- 10-22
- 90%
- 10-26
28°F — killing freeze
Last spring freeze
- 10%
- 04-28
- 20%
- 04-23
- 50%
- 04-16
- 80%
- 04-07
- 90%
- 04-03
First fall freeze
- 10%
- 10-11
- 20%
- 10-16
- 50%
- 10-24
- 80%
- 11-01
- 90%
- 11-05
Growing season length (days, 28°F threshold)
- Short year
- 166
- Median
- 191
- Long year
- 216
Source NOAA station
FAIRMONT, MN US
4.7 mi · 30 yrs of record (1991–2020) · 1187 ft elev.
Data from FAIRMONT, MN US, 4.7 miles away with 30-year NOAA record (1991-2020).
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