Milwaukee County, Wisconsin · Frost dates
Milwaukee County frost dates.
First-frost, last-frost, and growing-season length for Milwaukee County, Wisconsin. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 5a
32°F — light freeze
Last spring frost
- 10%
- 05-08
- 20%
- 05-01
- 50%
- 04-22
- 80%
- 04-13
- 90%
- 04-09
First fall frost
- 10%
- 10-10
- 20%
- 10-16
- 50%
- 10-26
- 80%
- 11-03
- 90%
- 11-08
28°F — killing freeze
Last spring freeze
- 10%
- 04-24
- 20%
- 04-19
- 50%
- 04-09
- 80%
- 04-02
- 90%
- 03-28
First fall freeze
- 10%
- 10-24
- 20%
- 10-30
- 50%
- 11-05
- 80%
- 11-15
- 90%
- 11-20
Growing season length (days, 28°F threshold)
- Short year
- 183
- Median
- 210
- Long year
- 237
Source NOAA station
SOUTH MILWAUKEE WWTP, WI US
1.0 mi · 30 yrs of record (1991–2020) · 650 ft elev.
Data from SOUTH MILWAUKEE WWTP, WI US, 1 miles away with 30-year NOAA record (1991-2020).
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