2026 Compare Cities Climate:
Herndon, VA vs Allen, TX

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Highlights
- Allen has 4.0% less rainy days than Herndon.
- Allen has 15.4% more Sunny Days than Herndon.
- On the BestPlaces comfort index, Allen scores 1.4% worse than Herndon
 Herndon, VAAllen, TXUnited States
 Rainfall  Unlock4138
 Snowfall22  Unlock28
 Precipitation  Unlock83106
 Sunny201  Unlock205
 Avg. July High  Unlock9386
 Avg. Jan. Low24  Unlock22
 Comfort Index (higher=better)  Unlock7.27
 UV Index4  Unlock4.3
 Elevation  Unlock6592443
Reviews for Herndon    12 Reviews

Over 11 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 17 years ago

Traffic has gotten out of control the last couple of  More

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Over 17 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 Allen    14 Reviews

Over 9 years ago

Originally from Dallas, we moved to Allen 2013. We love the schools, my kids are getting a great education. My daughter was tested in the gifted program as soon as we  More

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Over 9 years ago

Allen is quite possibly the best city I've ever had the privilege of visiting. Everyone you meet is courteous, helpful, and respectable. The town fully supports one  More

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Over 10 years ago

We are planning a move to Allen, Texas and would like to know how many months out of the year are warm enough to swim? Getting ready to make an offer on a home and  More

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