Records for Great Falls Area, Montana (GTFthr) on 09-12
Record Highs
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1: 92°F (1919)
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2: 91°F (1969)
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3: 90°F (1981)
Record Lows
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1: 29°F (1949)
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2: 30°F (1970)
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3: 30°F (1921)
Lowest Highs
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1: 65°F (1969)
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2: 57°F (1953)
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3: 56°F (1940)
Highest Lows
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1: 36°F (1970)
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2: 39°F (1921)
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3: 40°F (1907)
Highest September temperature:
102°F on 09-03-2022.
Lowest September temperature:
10°F on 09-24-1926.
Average temperature is 59.9°F
Average high is 74.3°F
Average low is 45.6°F
Temperature data from 1891 to 2022.
Record Precipitation
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1: 0.66" (1978)
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2: 0.63" (1967)
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3: 0.58" (1893)
Precipitation data from 1891 to 2022.