2025 Compare Cities Climate:
Petaluma, CA vs Helena, MT

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Highlights
- Helena has 57.7% less rainy days than Petaluma.
- Helena has 27.3% less Sunny Days than Petaluma.
- On the BestPlaces comfort index, Helena scores 21.4% worse than Petaluma
 Petaluma, CAHelena, MTUnited States
 Rainfall  Unlock1338
 Snowfall0  Unlock28
 Precipitation  Unlock90106
 Sunny260  Unlock205
 Avg. July High  Unlock8386
 Avg. Jan. Low39  Unlock22
 Comfort Index (higher=better)  Unlock6.67
 UV Index4.9  Unlock4.3
 Elevation  Unlock40452443
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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Reviews for Helena    17 Reviews

I spent 6 months living on a ranch in the Helena valley. This was during the population boom Montana experienced after covid. Helena has some great mountain biking  More

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Over 3 years ago

We transplanted from Southern California 3 years ago and have never looked back! Living in the small unincorporated town of York Montana located in the Helena nation  More

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Over 5 years ago

I lived here for 16 years. It is a great place to grow  More

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