2025 Compare Cities Climate:
Hayward, CA vs Boulder, CO

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Highlights
- Boulder has 0.6% more rainy days than Hayward.
- Boulder has 4.7% less Sunny Days than Hayward.
- On the BestPlaces comfort index, Boulder scores 18.4% worse than Hayward
 Hayward, CABoulder, COUnited States
 Rainfall  Unlock1838
 Snowfall0  Unlock28
 Precipitation  Unlock88106
 Sunny257  Unlock205
 Avg. July High  Unlock8886
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock7.17
 UV Index5.4  Unlock4.3
 Elevation  Unlock53282443
Reviews for Hayward    4 Reviews

I've lived in Hayward for 20 years. Traditionally a working  More

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Hetchy Hechy water is very pure,the summers are about 78f..warm enough. Winters are sunny for the most part and by average.One University and one College in this small  More

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Over 11 years ago

convenient BART and bus if you have no  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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