Records for Great Falls Area, Montana (GTFthr) on 12-20
Record Highs
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1: 57°F (2019)
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2: 57°F (1900)
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3: 56°F (1942)
Record Lows
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1: -28°F (1990)
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2: -26°F (1998)
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3: -25°F (1983)
Lowest Highs
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1: 43°F (1965)
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2: 42°F (1950)
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3: 41°F (2019)
Highest Lows
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1: -19°F (1990)
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2: -14°F (2022)
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3: -13°F (1983)
Highest December temperature:
69°F on 12-01-2021.
Lowest December temperature:
-43°F on 12-29-1968.
Average temperature is 27.7°F
Average high is 36.1°F
Average low is 19.2°F
Temperature data from 1891 to 2022.
Record Precipitation
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1: 0.30" (1964)
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2: 0.28" (1934)
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3: 0.25" (2010)
Precipitation data from 1891 to 2022.