NUMBEO

Climate in Decatur, IL, United States

IndexInfo
Climate Index: 67.92
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Climate By Month in Decatur, IL

MonthClimate
Score
Weather Conditions Outline
Jan-8.07
Low avg 18℉
Chance of windy day 56%
Chance of snow day 29%
Feb10.33
Low avg 21℉
Chance of windy day 56%
Chance of snow day 29%
Mar49.41
Low avg 30℉
Chance of windy day 54%
Apr84.93
Chance of windy day 59%
May99.37
Chance of rainy day 48%
Jun98.37
Chance of humid day 83%
Jul97.28
Chance of humid day 93%
Aug97.28
Chance of humid day 88%
Sep100.00
 
Oct95.64
 
Nov63.05
Chance of windy day 53%
Dec27.50
Low avg 25℉
Chance of cloudy day 50%

Best Months To Visit Decatur, IL

Best months to visit: April, May, June, July, August, September, October.

Temperatures (table)

MonthTemp
Low Avg
Temp
High Avg
Jan 18℉ 36℉
Feb 21℉ 39℉
Mar 30℉ 50℉
Apr 41℉ 64℉
May 55℉ 77℉
Jun 64℉ 84℉
Jul 64℉ 84℉
Aug 64℉ 84℉
Sep 57℉ 82℉
Oct 46℉ 68℉
Nov 34℉ 52℉
Dec 25℉ 39℉
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