Records for Great Falls Area, Montana (GTFthr) on 12-21
Record Highs
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1: 65°F (1933)
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2: 59°F (2019)
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3: 56°F (1974)
Record Lows
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1: -35°F (1990)
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2: -31°F (2022)
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3: -27°F (1967)
Lowest Highs
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1: 44°F (1940)
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2: 42°F (2019)
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3: 42°F (1919)
Highest Lows
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1: -19°F (2022)
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2: -17°F (1990)
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3: -14°F (1983)
Highest December temperature:
69°F on 12-01-2021.
Lowest December temperature:
-43°F on 12-29-1968.
Average temperature is 27.6°F
Average high is 36.1°F
Average low is 19.1°F
Temperature data from 1891 to 2022.
Record Precipitation
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1: 0.57" (1945)
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2: 0.35" (2001)
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3: 0.32" (1964)
Precipitation data from 1891 to 2022.