2026 Compare Cities Climate:
Greenwich, CT vs Potomac, MD

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Highlights
- Potomac has 17.5% less rainy days than Greenwich.
- Potomac has 5.8% more Sunny Days than Greenwich.
- On the BestPlaces comfort index, Potomac scores 2.8% better than Greenwich
 Greenwich, CTPotomac, MDUnited States
 Rainfall  Unlock4238
 Snowfall30  Unlock28
 Precipitation  Unlock114106
 Sunny190  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low21  Unlock22
 Comfort Index (higher=better)  Unlock7.37
 UV Index3.4  Unlock4.3
 Elevation  Unlock3612443
Reviews for Greenwich    2 Reviews

Over 18 years ago

Cost of Living is very high. If you can afford it, this is a very nice place to  More

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Cost of living, especially utilities is high. Even have a 'special' gas surcharge at the pump for those living (and buying) in lower Fairfield County. At the same time  More

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Reviews for Potomac    2 Reviews

Over 18 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 18 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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