Washington County, Wisconsin · Frost dates

Washington County frost dates.

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

Data confidence: high · USDA zone: 5a

32°F — light freeze

Last spring frost

10%
05-18
20%
05-12
50%
05-01
80%
04-24
90%
04-19

First fall frost

10%
09-28
20%
10-03
50%
10-12
80%
10-20
90%
10-26

28°F — killing freeze

Last spring freeze

10%
05-06
20%
04-30
50%
04-22
80%
04-12
90%
04-08

First fall freeze

10%
10-09
20%
10-14
50%
10-24
80%
11-02
90%
11-06

Growing season length (days, 28°F threshold)

Short year
156
Median
185
Long year
212

Source NOAA station

W BEND PUBLIC WORKS, WI US

2.4 mi · 30 yrs of record (19912020) · 980 ft elev.

Data from W BEND PUBLIC WORKS, WI US, 2.4 miles away with 30-year NOAA record (1991-2020).

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