2025 Compare Cities Climate:
Washington, PA vs Collinsville, IL

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Highlights
- Collinsville has 9.7% more rainy days than Washington.
- Collinsville has 21.3% more Sunny Days than Washington.
- On the BestPlaces comfort index, Collinsville scores 4.3% better than Washington
 Washington, PACollinsville, ILUnited States
 Rainfall  Unlock4338
 Snowfall33  Unlock28
 Precipitation  Unlock102106
 Sunny164  Unlock205
 Avg. July High  Unlock8986
 Avg. Jan. Low19  Unlock22
 Comfort Index (higher=better)  Unlock7.27
 UV Index3.6  Unlock4.3
 Elevation  Unlock5612443
Reviews for Washington    0 Reviews

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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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