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

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Highlights
- Petaluma has 64.6% more rainy days than Boulder.
- Petaluma has 6.1% more Sunny Days than Boulder.
- On the BestPlaces comfort index, Petaluma scores 18.3% better than Boulder
 Boulder, COPetaluma, CAUnited States
 Rainfall  Unlock3038
 Snowfall71  Unlock28
 Precipitation  Unlock75106
 Sunny245  Unlock205
 Avg. July High  Unlock8486
 Avg. Jan. Low19  Unlock22
 Comfort Index (higher=better)  Unlock8.47
 UV Index5.8  Unlock4.3
 Elevation  Unlock302443
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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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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