2025 Compare Cities Climate:
Rio Vista, CA vs Sunnyvale, CA

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Highlights
- Sunnyvale has 24.1% less rainy days than Rio Vista.
- Sunnyvale has 3.0% less Sunny Days than Rio Vista.
- On the BestPlaces comfort index, Sunnyvale scores 4.8% better than Rio Vista
 Rio Vista, CASunnyvale, CAUnited States
 Rainfall  Unlock1538
 Snowfall0  Unlock28
 Precipitation  Unlock63106
 Sunny268  Unlock205
 Avg. July High  Unlock8086
 Avg. Jan. Low39  Unlock22
 Comfort Index (higher=better)  Unlock8.87
 UV Index5.1  Unlock4.3
 Elevation  Unlock1252443
Reviews for Rio Vista    2 Reviews

Known as “the Gateway to the Delta”, Rio Vista is located in the heart of the California Delta on the Sacramento River. The views along the wide river bring to mind the  More

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There is plenty to be had in Rio Vista, particularly if you like dead animal heads on a bar wall (Fosters Big Horn) and a state of the art fish cleaning station located  More

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Reviews for Sunnyvale    14 Reviews

At this point, I would only recommend moving to silicon valley for the job market. Sure, the weather is great and the restaurants offer huge variety. But the costs of  More

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Like previous reviewer, tech company's tyranny over city gov and quality of living has negatively impacted a fantastic place to live. Climate, while super, is grossly  More

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I've lived here for 40 years. While the weather is fabulous, For the past ten years of high density housing mostly needed to house thousands of a young up coming tech  More

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