2025 Compare Cities Climate:
Herndon, VA vs Boulder, CO

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Highlights
- Boulder has 57.8% less rainy days than Herndon.
- Boulder has 21.9% more Sunny Days than Herndon.
- On the BestPlaces comfort index, Boulder scores 2.7% worse than Herndon
 Herndon, VABoulder, COUnited States
 Rainfall  Unlock1838
 Snowfall22  Unlock28
 Precipitation  Unlock88106
 Sunny201  Unlock205
 Avg. July High  Unlock8886
 Avg. Jan. Low24  Unlock22
 Comfort Index (higher=better)  Unlock7.17
 UV Index4  Unlock4.3
 Elevation  Unlock53282443
Reviews for Herndon    12 Reviews

Over 10 years ago

Seasons tend to be relatively mild. The warmer seasons are extended by 3-4 weeks as compared to the New York Metropolitan Area.  More

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Over 16 years ago

Traffic has gotten out of control the last couple of  More

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Over 16 years ago

We actually live south of Herndon in Oak Hill (Zip Code 20171). The Town of Herndon is incorporated, Oak Hill is not. Herndon is a nice enough city with an historic area  More

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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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