National Weather Service United States Department of Commerce

Winter Weather Awareness Week - November 9-13, 2020

Winter Awareness Week is jointly sponsored by the State of Wisconsin Emergency Management team and the National Weather Service Offices that serve Wisconsin. Everyone is encouraged to participate in the planned events and become more aware of the dangers of winter weather in Wisconsin. Winter hazards include heavy snows, blizzards, ice storms, extreme cold and low wind chills, widespread high winds, glazing of freezing drizzle or freezing rain, dense fog, and indirectly the effects of carbon monoxide poisoning.  

Tips for surviving our harsh winters from ReadyWisconsin.

Below are a series of graphics highlighting the frequency of various winter weather events across Wisconsin for the winter seasons of 1982-83 to 2019-2020.
Graphic of Total Number of Storms
Total # of
Winter Storms
Graphic of Total Number of Ice Storms
Total # of
Ice Storms
Graphic of Total Number of Blizzards
Total # of
Graphic of Total Number of extreme cold events
Total # of Extreme
Cold Events


Average Season Snowfall

Seasonal Wisconsin Snowfall Totals:


Here are a few recordings where we talk about winter weather: (2020)

What is Winter Weather

Winter Weather Forecasting:  Part 1  Part 2

NWS Products

According to Wisconsin Department of Transportation statistics, an average of about 50,000 vehicle accidents occur in the state each winter season when roads are covered with snow, ice, or slush. This results in an average of about 45 deaths and 5,000 injuries each winter. Nationally, an average of about 950 people die in winter-related road accidents each year. Many of these accidents can be avoided.

In addition, Wisconsin DOT statistics indicate that on average, about 1,200 vehicle accidents occur in the state each year when dense fog is a factor. This results in about 16 deaths and 700 injuries. Dense fog is more likely during the cooler part of the year.  On Friday, October 11th, 2002, a multiple-vehicle accident in southern Sheboygan County resulted in 10 fatalities due to white out conditions in dense fog on I-43, and another accident in northern Ozaukee County resulted in one fatality. Dense fog can occur at any time of the year, but is most common in the cooler part of the year. Many of the accidents related to dense fog can also be avoided. 

Wisconsin Annual Snow AveragesWinter Weather HeadlinesWind ChillWinter Driving Safety

Snow SquallsSnow Squall WarningsSnow SquallHeadlinesHeadlinesHeadlinesHeadlinesHeadlines



National Winter Weather Safety and Awareness Site
Winter Outlook: 2020-2021
Winter Weather Information Page

Experimental Probabilistic Snow Forecast Page

Public Information Statements