2025 Compare Cities Climate:
Chatham, IL vs Helena, MT

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Highlights
- Helena has 66.9% less rainy days than Chatham.
- Helena has 6.0% less Sunny Days than Chatham.
- On the BestPlaces comfort index, Helena scores 8.3% worse than Chatham
 Chatham, ILHelena, MTUnited States
 Rainfall  Unlock1338
 Snowfall19  Unlock28
 Precipitation  Unlock90106
 Sunny201  Unlock205
 Avg. July High  Unlock8386
 Avg. Jan. Low18  Unlock22
 Comfort Index (higher=better)  Unlock6.67
 UV Index3.9  Unlock4.3
 Elevation  Unlock40452443
Reviews for Chatham    1 Reviews

Over 16 years ago

Over all very good. Usually just a few severe storms and two or three heavy snow falls (8in). Seldomly snows be for Christmas. Most of the severe weather happens just  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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