Marion (IL) Climate by Month
Marion experiences great temperature shifts.
The city's weather can transition from very warm days
to cold weather.
It also has a notably wet climate with much precipitation.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
The climate in Marion is known for significant temperature differences throughout the year, making the weather dynamic. Average daytime temperatures range from a very warm 31°C in July, the warmest time of the year, to a chilly 5°C during cooler months like January. At night, temperatures typically average around -4°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Marion has a notably wet climate with abundant precipitation, recording 1246 mm of rain/snowfall per year. While rainfall varies throughout the year, each season offers its own charm. April brings wetter days averaging 149 mm of precipitation, spread over 11 rainy days. In contrast, January experiences a drier climate, with about 72 mm of snow/rainfall spread across 8 snowy/rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
The best time of year to visit Marion in the United States of America
During the months of April, May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
August has an average maximum temperature of 31°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 5°C.
April tops the wettest month list with 149 mm of rainfall.
January is the driest month with 72 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.
