2025 Compare Cities Climate:
Boulder, CO vs Potomac, MD

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Highlights
- Potomac has 132.0% more rainy days than Boulder.
- Potomac has 18.0% less Sunny Days than Boulder.
- On the BestPlaces comfort index, Potomac scores 2.8% better than Boulder
 Boulder, COPotomac, MDUnited States
 Rainfall  Unlock4238
 Snowfall71  Unlock28
 Precipitation  Unlock114106
 Sunny245  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low19  Unlock22
 Comfort Index (higher=better)  Unlock7.37
 UV Index5.8  Unlock4.3
 Elevation  Unlock3612443
Reviews for Boulder    55 Reviews

Outside of the university, Boulder had a very distinctive "wealthy hippy" feel. A lot of alternative medicine and a matching ethos. This is changing some among my  More

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We moved here from Texas about 4 years ago and love it here! The amazing sense of community and high regard for the environment are two of the main reasons we love  More

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Over 5 years ago

Most people do much worse than Boulder. I'm the most critical person I've ever met who is never happy or satisfied -- so that's a pretty huge compliment.   More

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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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