Click on any decade to view average annual temperature for 26 towns around the Great Lakes Region between 1/1/1920 and 12/31/2020. Click on any two decades to explore trends, but be aware that there is only 1 year of data for the 2020s.
You can also click on specific locations for a pop-up graph with an interactive slider illustrating temperatures over time.
Click on Units (bottom right) to toggle between degrees Fahrenheit and degrees Celsius.
Watch a demonstration. For a discussion of Chicago's temperature profile click here.