2025 Compare Cities Climate:
Winthrop Harbor, IL vs Chatham, MA

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Highlights
- Chatham has 33.3% more rainy days than Winthrop Harbor.
- Chatham has 5.2% more Sunny Days than Winthrop Harbor.
- On the BestPlaces comfort index, Chatham scores 4.4% better than Winthrop Harbor
 Winthrop Harbor, ILChatham, MAUnited States
 Rainfall  Unlock4838
 Snowfall40  Unlock28
 Precipitation  Unlock109106
 Sunny191  Unlock205
 Avg. July High  Unlock7886
 Avg. Jan. Low16  Unlock22
 Comfort Index (higher=better)  Unlock7.17
 UV Index3.7  Unlock4.3
 Elevation  Unlock132443
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