2025 Compare Cities Climate:
Portsmouth, RI vs Chatham, MA

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Highlights
- Chatham has 0.4% less rainy days than Portsmouth.
- Chatham has 0.0% more Sunny Days than Portsmouth.
- On the BestPlaces comfort index, Chatham scores 0.0% worse than Portsmouth
 Portsmouth, RIChatham, MAUnited States
 Rainfall  Unlock4838
 Snowfall32  Unlock28
 Precipitation  Unlock109106
 Sunny201  Unlock205
 Avg. July High  Unlock7886
 Avg. Jan. Low23  Unlock22
 Comfort Index (higher=better)  Unlock7.17
 UV Index3.6  Unlock4.3
 Elevation  Unlock132443
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