Steele County, Minnesota · Frost dates
Steele County frost dates.
First-frost, last-frost, and growing-season length for Steele County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-20
- 20%
- 05-14
- 50%
- 05-05
- 80%
- 04-25
- 90%
- 04-20
First fall frost
- 10%
- 09-23
- 20%
- 09-28
- 50%
- 10-06
- 80%
- 10-16
- 90%
- 10-21
28°F — killing freeze
Last spring freeze
- 10%
- 05-12
- 20%
- 05-06
- 50%
- 04-25
- 80%
- 04-16
- 90%
- 04-10
First fall freeze
- 10%
- 10-02
- 20%
- 10-07
- 50%
- 10-18
- 80%
- 10-27
- 90%
- 11-01
Growing season length (days, 28°F threshold)
- Short year
- 143
- Median
- 176
- Long year
- 205
Source NOAA station
OWATONNA, MN US
5.7 mi · 30 yrs of record (1991–2020) · 1140 ft elev.
Data from OWATONNA, MN US, 5.7 miles away with 30-year NOAA record (1991-2020).
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