Climate in Lake St. Louis, Missouri

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Climate

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Climate	Lake St. Louis, MO	United States
Rainfall (in.)	40.4	36.5
Snowfall (in.)	16.6	25
Precipitation Days	108	100
Sunny Days	199	205
Avg. July High	90	86.5
Avg. Jan. Low	20.6	20.5
Comfort Index (higher=better)	35	44
UV Index	4.4	4.3
Elevation ft.	545	1,060

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Lake St. Louis, MO, gets 40 inches of rain per year. The US average is 37. Snowfall is 17 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 108.

On average, there are 199 sunny days per year in Lake St. Louis, MO. The July high is around 90 degrees. The January low is 21. Our comfort index, which is based on humidity during the hot months, is a 35 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

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