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Climate in Petaluma, California

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ClimatePetaluma, CAUnited States
Rainfall (in.)25.236.5
Snowfall (in.)025
Precipitation Days69100
Sunny Days260205
Avg. July High8286.5
Avg. Jan. Low3820.5
Comfort Index (higher=better)4644
UV Index4.94.3
Elevation ft.791,443



Petaluma, CA, gets 25 inches of rain per year. The US average is 37. Snowfall is 0 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 69.

On average, there are 260 sunny days per year in Petaluma, CA. The July high is around 82 degrees. The January low is 38. Our comfort index, which is based on humidity during the hot months, is a 46 out of 100, where higher is more comfortable. The US average on the comfort index is 44.


Petaluma Climate SperlingViews

Up and coming: Too many people: As much as I have enjoyed Petaluma, over the past year and half they have done a lot of remodeling and building of apartments and what they call "lofts." This makes... (read more)Eternal Spring: Great mild climate, ocean influence cools it off in early evening during hot weather. But housing is very... (read more)Petaluma - A nice place to live.: Having grown up in Monterey California and having just moved from 10+ years in Rincon Valley of Santa Rosa, Petaluma has furthered the gift of living in an area that... (read more)Have an opinion about Petaluma? Leave a commentTo See All SperlingViews for Petaluma Click Here