Mattoon (IL) Weather and Climate: A Comprehensive Guide
The climate in Mattoon is marked by big temperature swings throughout the year.
Temperatures range from warm during the warmest months
to cold in the cooler months.
It is also known for its large amounts of rain/snowfall.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
In Mattoon, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 30°C in July to a chilly 2°C in the coolest month, January.
Nights are cooler, with lows often dropping to around -7°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Mattoon experiences significant rain/snowfall throughout the year, averaging 1129 mm of precipitation annually. The climate in Mattoon shows significant variation throughout the year. Expect high rainfall in April, with an average of 149 mm of precipitation over 12 rainy days. In contrast, January offers drier and sunnier days, with around 56 mm of snow/rainfall over 9 snowy/rainy days. For more details, please visit our Mattoon Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
broken clouds and rain overcast and no rain overcast and heavy rainForecast for Mattoon (IL)
4 m/s
5 m/s
6 m/s
The best time of year to visit Mattoon in the United States of America
Other facts from our historical weather data:The hottest season / summer takes place in June, July, August and September.
August has an average maximum temperature of 30°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 2°C.
April tops the wettest month list with 149 mm of rainfall.
January is the driest month with 56 mm of precipitation.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
