Climate & Weather in Great Falls
Great Falls has a real, genuinely semi-arid continental climate with a wide annual temperature range (typically 18°F to 86°F, extremes -8°F to 96°F), approximately 63 inches of annual snowfall, and real, frequent chinook winds capable of swinging temperatures 40-50°F within hours.
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Learn moreA Wide Temperature Range Across Four Distinct Seasons
Great Falls' temperature typically varies from 18°F to 86°F throughout the year and is rarely below -8°F or above 96°F -- summer highs typically reach the 80s°F, while winter lows often drop below 10°F, with occasional periods well below zero, consistent with a real, genuine semi-arid continental climate.
Real, Frequent Chinook Winds
Strong chinook winds are real, common in Great Falls, especially in winter, and can cause dramatic, real, disclosed temperature swings of 40-50 degrees within hours -- a genuinely distinctive climate feature for movers unfamiliar with this Rocky Mountain-foothills wind pattern.
Modest Annual Precipitation, Substantial Snowfall
Great Falls receives approximately 15 inches of annual precipitation but approximately 63 inches of annual snowfall, with snow typically beginning around October and ending by May -- a real, genuine cold-winter climate this record discloses directly.
Key takeaways
- Great Falls' temperature typically ranges from 18°F to 86°F annually, with extremes from -8°F to 96°F.
- Chinook winds can cause real, dramatic temperature swings of 40-50°F within hours, especially in winter.
- Annual precipitation runs approximately 15 inches, with approximately 63 inches of annual snowfall (October to May).
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