Weather Forecast Accuracy Last Month (December)

Weather Forecast Accuracy Last Year (2021)

Weather Changeability for Great Falls, Montana

Average change in

Temperature

Average change in high temperature day-to-day

Last Month:

11.8°

Last Year:

7.6°

Average change in low temperature day-to-day

Last Month:

15.4°

Last Year:

9.6°

Average change in

Precipitation

Chance of dry day after a precip day

Last Month:

38%

Last Year:

64%

Chance of precip day after a dry day

Last Month:

38%

Last Year:

18%

ForecastAdvisor Fact

7.5% of Weather Underground's low temperature forecasts for Great Falls were exactly right last month.

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