2025 Compare Cities Climate:
Sun Valley, ID vs Mill Valley, CA

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Highlights
- Mill Valley has 196.4% more rainy days than Sun Valley.
- Mill Valley has 24.4% more Sunny Days than Sun Valley.
- On the BestPlaces comfort index, Mill Valley scores 33.3% better than Sun Valley
 Sun Valley, IDMill Valley, CAUnited States
 Rainfall  Unlock4138
 Snowfall102  Unlock28
 Precipitation  Unlock78106
 Sunny205  Unlock205
 Avg. July High  Unlock7786
 Avg. Jan. Low8  Unlock22
 Comfort Index (higher=better)  Unlock8.47
 UV Index4.1  Unlock4.3
 Elevation  Unlock822443
Reviews for Sun Valley    5 Reviews

Young people living in Sun Valley, unless they have a trust fund can expect to have a difficult time here. The average age seems to be approx 78. Any business that is  More

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Absolutely beautiful. Nice people. Amazing skiing...all types of recreation for anyone and everyone. Summer temperatures are perfect. It's sunny more than 250 days  More

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Over 19 years ago

Winters are long, and summers can be short!!! The physcial beauty of the area is unbeatable,  More

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Reviews for Mill Valley    7 Reviews

I lived in southern Marin County for 20 years and lived it. Just moved  More

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Over 15 years ago

Mill Valley is a perfect place to live and raise a family, if you don't mind a cost of living index of 233. Don't distress - go mountain biking or hiking with  More

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Over 16 years ago

Good weather all year around. Great public schools. Cost of living very high. Crime low wonderful outdoor activities nearby like hiking, beaches,  More

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