2026 Compare Cities Climate:
Ontario, CA vs Helena, MT

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Highlights
- Helena has 19.7% less rainy days than Ontario.
- Helena has 32.3% less Sunny Days than Ontario.
- On the BestPlaces comfort index, Helena scores 25.0% worse than Ontario
 Ontario, CAHelena, MTUnited States
 Rainfall  Unlock1338
 Snowfall0  Unlock28
 Precipitation  Unlock90106
 Sunny279  Unlock205
 Avg. July High  Unlock8386
 Avg. Jan. Low43  Unlock22
 Comfort Index (higher=better)  Unlock6.67
 UV Index5.7  Unlock4.3
 Elevation  Unlock40452443
Reviews for Ontario    6 Reviews

We've lived in this area for several years. Traveling long distances to other cities for churches. Passing a quiet, unassuming church along the way for years. Until  More

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cool  More

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I think Ontario,ca us awesome because we have an entertainment Venue and large shopping mall to please everyone of all  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 4 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 6 years ago

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

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