2025 Compare Cities Climate:
Collinsville, IL vs Arnold, MO

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Highlights
- Arnold has 2.3% more rainy days than Collinsville.
- Arnold has 2.0% more Sunny Days than Collinsville.
- On the BestPlaces comfort index, Arnold scores 1.4% better than Collinsville
 Collinsville, ILArnold, MOUnited States
 Rainfall  Unlock4438
 Snowfall13  Unlock28
 Precipitation  Unlock97106
 Sunny199  Unlock205
 Avg. July High  Unlock8886
 Avg. Jan. Low22  Unlock22
 Comfort Index (higher=better)  Unlock7.37
 UV Index4.1  Unlock4.3
 Elevation  Unlock6002443
Reviews for Collinsville    2 Reviews

St. Louis MO metro area - Illinois area. Blistering summer weather, way below freezing winters. Almost no spring or fall. Otherwise, not a bad  More

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Over 19 years ago

Collinsville's winters rarely get a heavy snowfall. A few inches is the norm. The summers are hot and very muggy. Fall and Spring are the best times to be in  More

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Reviews for Arnold    1 Reviews

Over 16 years ago

My husband's family lives in the area (Crestwood, Barnhart, Fenton, Ballwin), we have been visiting for about 20 years. We moved from a southern state which had it  More

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