2025 Compare Cities Climate:
Sumner, IL vs Charleston, IL

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Highlights
- Charleston has 12.0% less rainy days than Sumner.
- Charleston has 1.5% less Sunny Days than Sumner.
- On the BestPlaces comfort index, Charleston scores 1.4% better than Sumner
 Sumner, ILCharleston, ILUnited States
 Rainfall  Unlock4038
 Snowfall13  Unlock28
 Precipitation  Unlock111106
 Sunny205  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low22  Unlock22
 Comfort Index (higher=better)  Unlock7.27
 UV Index4.3  Unlock4.3
 Elevation  Unlock6732443
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