Climate in Cahokia, Illinois

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Climate

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Climate	Cahokia, IL	United States
Rainfall (in.)	39.8	36.5
Snowfall (in.)	16.1	25
Precipitation Days	104	100
Sunny Days	202	205
Avg. July High	89	86.5
Avg. Jan. Low	20.6	20.5
Comfort Index (higher=better)	41	44
UV Index	4.1	4.3
Elevation ft.	400	1,060

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Cahokia, IL, gets 40 inches of rain per year. The US average is 37. Snowfall is 16 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 104.

On average, there are 202 sunny days per year in Cahokia, IL. The July high is around 89 degrees. The January low is 21. Our comfort index, which is based on humidity during the hot months, is a 41 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

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