Florence County, Wisconsin · Frost dates

Florence County frost dates.

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

Data confidence: high · USDA zone: 5a

32°F — light freeze

Last spring frost

10%
06-08
20%
06-03
50%
05-24
80%
05-15
90%
05-09

First fall frost

10%
09-07
20%
09-13
50%
09-25
80%
10-05
90%
10-09

28°F — killing freeze

Last spring freeze

10%
05-26
20%
05-21
50%
05-11
80%
04-30
90%
04-27

First fall freeze

10%
09-21
20%
09-27
50%
10-06
80%
10-16
90%
10-20

Growing season length (days, 28°F threshold)

Short year
118
Median
148
Long year
176

Source NOAA station

FLORENCE, WI US

8.3 mi · 30 yrs of record (19912020) · 1300 ft elev.

Data from FLORENCE, WI US, 8.3 miles away with 30-year NOAA record (1991-2020).

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