Milwaukee Snowfall Totals & Accumulation Averages
This page pulls together information on when, how much and how often Milwaukee, Wisconsin has snow.
There are data and descriptions here of how many days it snows and the total amount of snowfall that Milwaukee usually gets. There are also monthly and yearly counts of the days that the city normally has heavy snowstorms and deep snow accumulated on the ground. Plus there's information on when Milwaukee can expect the first and last snowfalls of the season.
The first set of monthly snow totals are averages for 2010 to 2019. All the other numbers are averages, based on climate data gathered from 1991 to 2020 at Milwaukee's General Mitchell International Airport.
How Often it Snows in Milwaukee
The next two tables list monthly and yearly totals for amount of snow and how many days it snows at least 0.1 inches (0.25 centimetres).
These averages don't show how much the snowfall in Milwaukee varies from year to year.
In December, for instance, one in four years totals over 11.8 inches of snow. Another 25 percent of years receive less than 2.6 inches for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 20.1 inches, while the lightest years get under 8.8 inches.
New snow for February ranges from 16.5 inches or more in heavy snowfall years to 4.4 inches or less in light years.
When Milwaukee Has Its First & Last Snowfalls
The first snowfall of winter for Milwaukee usually arrives in November, although a rare snowstorm can show up in October.
The season's last snowfall typically happens in April. While unusual, it is possible for November or April to not receive any snow.
Milwaukee is normally free of snow every year from May to September.
How Many Snowstorms Milwaukee Gets
Most days of snowfall in Milwaukee leave just a skiff, amounting to less than an inch, of fresh snow on the ground. For 14 days a year on average, the amount of new snow totals at least an inch.
Snowstorms of over five inches a day usually occur a couple times a year. But major blizzards that dump ten inches or more in one day are rare events, that don't happen every year.
How Much Snow Normally Accumulates in Milwaukee
For about half of winter days, Milwaukee has at least an inch of snow on the ground.
Snow mostly accumulates during January and February. Typically, on two or three days in January and in February, the snow covering Milwaukee gets to ten or more inches deep.
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.