2025 Compare Cities Climate:
Hayward, CA vs Petaluma, CA

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Highlights
- Petaluma has 65.6% more rainy days than Hayward.
- Petaluma has 1.2% more Sunny Days than Hayward.
- On the BestPlaces comfort index, Petaluma scores 3.4% worse than Hayward
 Hayward, CAPetaluma, CAUnited States
 Rainfall  Unlock3038
 Snowfall0  Unlock28
 Precipitation  Unlock75106
 Sunny257  Unlock205
 Avg. July High  Unlock8486
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock8.47
 UV Index5.4  Unlock4.3
 Elevation  Unlock302443
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 Petaluma    16 Reviews

I agree with the low star reviews. Been here for 25 years, raised a family and seen everything turn to the left and worse. Weather is glorious, love the old Victorians  More

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We’ve lived here for 3 years and we love it. It has taken some time to grow on us. We moved from SF where we had lived over 15 years, we were not used to one year leases  More

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I’ve lived here a couple of years (after living in others parts of the Bay Area for 15+ years) and I love it! Great neighborhoods, friendly folks, good schools with  More

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