Lafayette County, Wisconsin · Frost dates

Lafayette County frost dates.

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

Data confidence: high · USDA zone: 5a

32°F — light freeze

Last spring frost

10%
05-19
20%
05-13
50%
05-03
80%
04-23
90%
04-19

First fall frost

10%
09-20
20%
09-25
50%
10-04
80%
10-14
90%
10-19

28°F — killing freeze

Last spring freeze

10%
05-09
20%
05-03
50%
04-23
80%
04-14
90%
04-09

First fall freeze

10%
09-29
20%
10-05
50%
10-16
80%
10-24
90%
10-29

Growing season length (days, 28°F threshold)

Short year
143
Median
176
Long year
203

Source NOAA station

DARLINGTON WWTP, WI US

2.0 mi · 30 yrs of record (19912020) · 854 ft elev.

Data from DARLINGTON WWTP, WI US, 2 miles away with 30-year NOAA record (1991-2020).

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