Milwaukee Snowfall Totals & Accumulation Averages

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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.

All the numbers are averages, based on climate data gathered from 1981 to 2010 at Milwaukee's General Mitchell International Airport.

How Often it Snows in Milwaukee

This first table lists monthly and yearly totals for amount of snow and how many days it snows at least 0.1 inches (0.25 centimetres).

Average total snowfall and days with fresh snow in Milwaukee
Days   Inches Centimetres
  9.8 January 14.7   37.3
  7.5 February   9.8   24.9
  5.6 March   7.0   17.8
  1.7 April   2.0     5.1
  0.1 May   0.1     0.3
  0.3 October   0.3     0.8
  2.5 November   2.4     6.1
  7.8 December 10.6   26.9
35.3 Year 46.9 119.1

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 12.8 inches of snow. Another 25 percent of years receive less than 3.4 inches for the month.

Similarly in January, fresh snowfall in the heaviest years amounts to over 20.8 inches, while the lightest years get under 8.5 inches.

New snow for February ranges from 14 inches or more in heavy snowfall years to three 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, yet snow in May does occur occasionally.

Milwaukee is normally free of snow every year from June 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 13 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.

Number of days per month and year on average in Milwaukee with a total snowfall of at least 1, 3, 5 or 10 inches
1 inch
2.5 cm
3 inches
7.6 cm
  5 inches
12.7 cm
10 inches
25.4 cm
  4.5 1.7 January 0.5 0.1
  2.8 1.0 February 0.6 0.0
  2.0 0.6 March 0.3 0.1
  0.4 0.2 April 0.1 0.0
  0.1 0.0 October 0.0 0.0
  0.6 0.1 November 0.1 0.0
  3.0 1.1 December 0.5 0.1
13.4 4.7 Year 2.1 0.3

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 three days in January and in February, the snow covering Milwaukee gets to ten or more inches deep.

Average total days per month and year in Milwaukee with snow depth of at least 1, 3, 5 or 10 inches on the ground
1 inch
2.5 cm
3 inches
7.6 cm
  5 inches
12.7 cm
10 inches
25.4 cm
21.4 17.0 January 11.1 3.2
16.9 11.8 February   7.7 3.1
  7.1   4.3 March   2.5 0.4
  0.7   0.4 April   0.1 0.0
  0.1   0.0 October   0.0 0.0
  1.1   0.4 November   0.2 0.1
12.3   6.3 December   3.3 1.1
59.6 40.2 Year 24.9 7.9
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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