When is the first freeze in Milwaukee, WI?

NOAA's 1991-2020 climate normals for MILWAUKEE MITCHELL AP, WI US put the middle date for the first fall freeze (32°F or colder) at about Oct 29. The middle date for the first hard freeze (28°F or colder) is about Nov 8.

First fall freeze (32°F), middle date	Oct 29
First hard freeze (28°F), middle date	Nov 8
Last spring freeze (32°F), middle date	Apr 19
Chance of a 32°F night in a year	100%
Weather station	MILWAUKEE MITCHELL AP, WI US (USW00014839)

The middle date is NOAA's 50% date. In about half of years the first freeze comes sooner, and in half it comes later. One station can differ from nearby areas, mostly low or rural spots. Dates change each year, so check the latest National Weather Service forecast.

For HVAC and plumbing shops in Milwaukee

ForecastBooked watches the NWS forecast for the ZIPs you serve. When the first freeze is really in the forecast, a ready-to-send email, text, Google post and social post for your customers appears on your kit page. Pro and up also get a graphic.

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Source

NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020, annual/seasonal normals, station USW00014839: fields ANN-TMIN-PRBFST-T32FP50, ANN-TMIN-PRBFST-T28FP50, ANN-TMIN-PRBLST-T32FP50, ANN-TMIN-PRBOCC-LSTH032. https://www.ncei.noaa.gov/data/normals-annualseasonal/1991-2020/access/USW00014839.csv. ForecastBooked is not affiliated with or endorsed by NOAA.