Fillmore County, Minnesota · Frost dates

Fillmore County frost dates.

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

Data confidence: high · USDA zone: 4a

32°F — light freeze

Last spring frost

10%
05-27
20%
05-23
50%
05-14
80%
05-05
90%
05-01

First fall frost

10%
09-15
20%
09-19
50%
09-28
80%
10-05
90%
10-09

28°F — killing freeze

Last spring freeze

10%
05-18
20%
05-13
50%
05-04
80%
04-26
90%
04-21

First fall freeze

10%
09-24
20%
09-28
50%
10-05
80%
10-14
90%
10-18

Growing season length (days, 28°F threshold)

Short year
129
Median
154
Long year
180

Source NOAA station

PRESTON, MN US

1.1 mi · 30 yrs of record (19912020) · 930 ft elev.

Data from PRESTON, MN US, 1.1 miles away with 30-year NOAA record (1991-2020).

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