Climate & Weather in Helena
Helena has a real, genuine cold semi-arid climate with large seasonal temperature swings -- warm, dry summers (July average high cited around 83.4°F) and cold, snowy winters (January average high around 23°F, average low around 9.9°F, roughly 37.2 inches of annual snowfall) -- consistent with its Rocky Mountain valley setting.
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Learn moreWarm, Dry Summers
July, Helena's warmest month, is cited with an average high around 83.4°F and an average temperature around 71°F (21.4°C) -- genuinely warm but not extreme, and genuinely dry (low humidity) rather than the muggy conditions cited for more humid-climate markets in this project's dataset.
Cold, Snowy Winters
January, the coldest month, is cited with an average high around 23°F and an average nighttime low around 9.9°F, with approximately 37.2 inches of annual snowfall -- real, genuine winter conditions consistent with Helena's Rocky Mountain valley setting.
Large Seasonal Swings and Four Distinct Seasons
Helena's cold semi-arid (BSk) climate classification reflects real, genuinely large seasonal temperature contrasts between its warm summers and cold winters -- a real, defining climate characteristic for movers considering Montana's capital region versus a milder or more uniform climate elsewhere.
Key takeaways
- Helena's July average high runs around 83.4°F, genuinely warm but dry rather than humid.
- Helena's January average high runs around 23°F, with average lows around 9.9°F and roughly 37.2 inches of annual snowfall.
- Helena's cold semi-arid climate produces large seasonal temperature swings and four genuinely distinct seasons.
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