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Weather Blog: When is peak tornado season in Wisconsin?

Posted at 3:40 PM, May 15, 2020
and last updated 2020-05-15 16:40:35-04

WISCONSIN — Severe weather season is approaching for Wisconsin. Lets take a closer look at tornadoes and how they have impacted the state in the past.

Tornadoes can occur at nearly any point in the year in Wisconsin; February is the only month with zero tornadoes on record. However, the peak season for tornadoes arrives with warmer temperatures. May, June, July, and August bring the most tornado days, with the peak occurring in June.


Based on data from 1981-2010, Wisconsin has an average of 23 tornadoes per year, although some years there are more, and some fewer.

This gives us a historical look at EF-0 and EF-1 Tornadoes in Wisconsin
This is a look at past EF-2 or stronger tornadoes in the state
NWS Tor Events.jpg
Here is another look at past tornado data across the state (from 1844-2014)

Now is a good time to review your severe weather safety plan with your family. Make sure you have multiple ways to get severe weather warnings (weather radio, phone alerts, television, radio, outdoor sirens) and know where you will go in the event of a tornado.

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