2025 Compare Cities Climate:
Cos Cob, CT vs Potomac, MD

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Highlights
- Potomac has 17.5% less rainy days than Cos Cob.
- Potomac has 14.9% more Sunny Days than Cos Cob.
- On the BestPlaces comfort index, Potomac scores 2.8% better than Cos Cob
 Cos Cob, CTPotomac, MDUnited States
 Rainfall  Unlock4238
 Snowfall30  Unlock28
 Precipitation  Unlock114106
 Sunny175  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low21  Unlock22
 Comfort Index (higher=better)  Unlock7.37
 UV Index3.4  Unlock4.3
 Elevation  Unlock3612443
Reviews for Cos Cob    0 Reviews

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Reviews for Potomac    2 Reviews

Over 17 years ago

Spring and Fall can be quite glorious when the leaves turn or the tulips pop out and the humidity is lower. Winter, while it has some splendid "snow days," goes on much  More

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Over 17 years ago

The Potomac area in Montgomery County, Maryland, has the best of everything. High schools rated in the top 5 in the State, easy access to the Nation's Capitol,  More

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