2025 Compare Cities Climate:
Potomac, MD vs Sunnyvale, CA

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Highlights
- Sunnyvale has 63.3% less rainy days than Potomac.
- Sunnyvale has 29.4% more Sunny Days than Potomac.
- On the BestPlaces comfort index, Sunnyvale scores 20.5% better than Potomac
 Potomac, MDSunnyvale, CAUnited States
 Rainfall  Unlock1538
 Snowfall17  Unlock28
 Precipitation  Unlock63106
 Sunny201  Unlock205
 Avg. July High  Unlock8086
 Avg. Jan. Low25  Unlock22
 Comfort Index (higher=better)  Unlock8.87
 UV Index4.1  Unlock4.3
 Elevation  Unlock1252443
Reviews for Potomac    2 Reviews

Over 17 years ago

Spring and Fall can be quite glorious when the leaves turn or the tulips pop out and the humidity is lower. Winter, while it has some splendid "snow days," goes on much  More

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Over 17 years ago

The Potomac area in Montgomery County, Maryland, has the best of everything. High schools rated in the top 5 in the State, easy access to the Nation's Capitol,  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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