2025 Compare Cities Climate:
Sunnyvale, CA vs Helena, MT

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Highlights
- Helena has 18.2% less rainy days than Sunnyvale.
- Helena has 27.3% less Sunny Days than Sunnyvale.
- On the BestPlaces comfort index, Helena scores 25.0% worse than Sunnyvale
 Sunnyvale, CAHelena, MTUnited States
 Rainfall  Unlock1338
 Snowfall0  Unlock28
 Precipitation  Unlock90106
 Sunny260  Unlock205
 Avg. July High  Unlock8386
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock6.67
 UV Index5.1  Unlock4.3
 Elevation  Unlock40452443
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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Reviews for Helena    17 Reviews

I spent 6 months living on a ranch in the Helena valley. This was during the population boom Montana experienced after covid. Helena has some great mountain biking  More

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Over 3 years ago

We transplanted from Southern California 3 years ago and have never looked back! Living in the small unincorporated town of York Montana located in the Helena nation  More

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Over 5 years ago

I lived here for 16 years. It is a great place to grow  More

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