2025 Compare Cities Climate:
Portola Valley, CA vs Monte Sereno, CA

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Highlights
- Monte Sereno has 11.1% more rainy days than Portola Valley.
- Monte Sereno has 0.4% more Sunny Days than Portola Valley.
- On the BestPlaces comfort index, Monte Sereno scores 1.2% better than Portola Valley
 Portola Valley, CAMonte Sereno, CAUnited States
 Rainfall  Unlock3438
 Snowfall0  Unlock28
 Precipitation  Unlock65106
 Sunny262  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low41  Unlock22
 Comfort Index (higher=better)  Unlock8.57
 UV Index4.9  Unlock4.3
 Elevation  Unlock5022443
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