Records for Great Falls Area, Montana (GTFthr) on 09-20
Record Highs
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1: 93°F (1917)
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2: 92°F (1918)
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3: 89°F (1897)
Record Lows
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1: 24°F (1995)
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2: 26°F (1983)
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3: 26°F (1934)
Lowest Highs
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1: 60°F (1905)
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2: 58°F (1898)
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3: 57°F (1966)
Highest Lows
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1: 44°F (1988)
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2: 44°F (1968)
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3: 45°F (1971)
Highest September temperature:
102°F on 09-03-2022.
Lowest September temperature:
10°F on 09-24-1926.
Average temperature is 57°F
Average high is 70.6°F
Average low is 43.4°F
Temperature data from 1891 to 2022.
Record Precipitation
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1: 0.72" (1968)
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2: 0.45" (2004)
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3: 0.45" (1941)
Precipitation data from 1891 to 2022.