Average first measurable snowfall dates for locations in northeast and north-central Wisconsin are listed below. The average dates were compiled from 30 years of data (1981-2010). Note: The average date can be influenced by the time of day the snow falls and is subsequently measured by the observer. See Factors section below for more information.

  Average date of first Average date of first
Location 0.1" snowfall 1.0" snowfall
Antigo Nov 8 Nov 15
Appleton Nov 15  Nov 26
Brillion Nov 19 Nov 23
Chilton Nov 16 Nov 21
Clintonville Nov 16 Nov 25
Eagle River Nov 2 Nov 4
Green Bay Nov 13 Nov 23
Kewaunee Nov 26 Nov 28
Lac Vieux Desert (Vilas) Oct 18 Oct 24
Laona Oct 21 Nov 4
Manitowoc Not Available Not Available
Marinette Nov 20 Nov 26
Marshfield Nov 9 Nov 13
Merrill Nov 7 Nov 14
New London Nov 21 Nov 27
Oconto Nov 17 Nov 23
Oshkosh Nov 26 Dec 1
Phelps Oct 29 Nov 4
Rhinelander Nov 5 Nov 8
St. Germain Oct 30 Nov 1
Shawano Nov 17 Nov 20
Stevens Point Nov 16 Nov 25
Summit Lake Nov 2 Nov 6
Two Rivers Nov 27 Nov 30
Washington Island Nov 27 Nov 30
Waupaca Nov 17 Nov 20
Wausau Nov 2 Nov 11
Wausaukee Nov 19 Nov 22
Wisconsin Rapids Nov 16 Nov 20

Factors

There are many factors that can influence the average date at a particular location. During the fall and early winter, storm tracks can play a significant role between snow and rain. Along Lake Michigan and the waters of Green Bay, the warmer waters tend to keep the region several degrees above freezing resulting in a slower changeover to all snow during the fall and early winter.

Other factors than can influence the average dates include the location of the observing location that may be enclosed by trees or are in a wide open area. In addition, during the fall and early winter, volunteer observers may not measure the snowfall for several hours after the event which may allow for the snow to melt. This is especially true during the overnight hours early in the season where snow occurs and then melts before the observer makes a measurement.

Average Snowfall

Click here for average seasonal snowfall totals across northeast Wisconsin.


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