Records for Great Falls Area, Montana (GTFthr) on 12-31
Record Highs
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1: 59°F (1963)
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2: 58°F (1917)
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3: 56°F (1926)
Record Lows
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1: -33°F (1927)
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2: -33°F (1923)
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3: -26°F (2017)
Lowest Highs
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1: 44°F (1997)
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2: 43°F (1926)
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3: 41°F (1958)
Highest Lows
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1: -17°F (1927)
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2: -13°F (1992)
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3: -12°F (2017)
Highest December temperature:
69°F on 12-01-2021.
Lowest December temperature:
-43°F on 12-29-1968.
Average temperature is 27.5°F
Average high is 36.7°F
Average low is 18.2°F
Temperature data from 1891 to 2022.
Record Precipitation
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1: 0.41" (1899)
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2: 0.37" (1959)
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3: 0.14" (1975)
Precipitation data from 1891 to 2022.