Freeborn County, Minnesota · Frost dates

Freeborn County frost dates.

First-frost, last-frost, and growing-season length for Freeborn County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.

Data confidence: high · USDA zone: 4a

32°F — light freeze

Last spring frost

10%
05-10
20%
05-06
50%
04-27
80%
04-17
90%
04-12

First fall frost

10%
09-26
20%
10-01
50%
10-09
80%
10-19
90%
10-23

28°F — killing freeze

Last spring freeze

10%
04-30
20%
04-25
50%
04-15
80%
04-06
90%
04-02

First fall freeze

10%
10-05
20%
10-10
50%
10-19
80%
10-28
90%
11-01

Growing season length (days, 28°F threshold)

Short year
158
Median
187
Long year
213

Source NOAA station

ALBERT LEA 3SE, MN US

5.3 mi · 30 yrs of record (19912020) · 1230 ft elev.

Data from ALBERT LEA 3SE, MN US, 5.3 miles away with 30-year NOAA record (1991-2020).

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