2025 Compare Cities Climate:
Herndon, VA vs Portsmouth, NH

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Highlights
- Portsmouth has 16.8% more rainy days than Herndon.
- Portsmouth has 1.5% less Sunny Days than Herndon.
- On the BestPlaces comfort index, Portsmouth scores 6.8% worse than Herndon
 Herndon, VAPortsmouth, NHUnited States
 Rainfall  Unlock5038
 Snowfall22  Unlock28
 Precipitation  Unlock118106
 Sunny201  Unlock205
 Avg. July High  Unlock8286
 Avg. Jan. Low24  Unlock22
 Comfort Index (higher=better)  Unlock6.87
 UV Index4  Unlock4.3
 Elevation  Unlock202443
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 Portsmouth    7 Reviews

Over 15 years ago

I was up in Portsmouth a couple years ago visiting from Florida. I loved how I was able to prk the car, get out and have numerous bars/restaurants, clothing stores, etc  More

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Over 16 years ago

Portsmouth is full of history, art, interesting shops, restaurants and the best  More

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Over 18 years ago

Portsmouth is a beautiful historic town settled right on the seacoast. Excellent restaurants, great cafes and shops, and picturesque streets make this a wonderful city  More

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