Records for Missoula Area, Montana (MSOthr) on 09-15
Record Highs
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1: 90°F (1953)
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2: 89°F (1998)
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3: 89°F (1937)
Record Lows
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1: 22°F (1970)
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2: 27°F (1969)
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3: 28°F (1917)
Lowest Highs
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1: 62°F (1937)
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2: 59°F (2013)
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3: 53°F (2021)
Highest Lows
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1: 45°F (1950)
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2: 46°F (2017)
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3: 50°F (2006)
Highest September temperature:
99°F on 09-01-1967.
Lowest September temperature:
15°F on 09-25-1926.
Average temperature is 58.8°F
Average high is 73.7°F
Average low is 43.9°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 1.30" (1954)
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2: 0.79" (1965)
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3: 0.41" (1908)
Precipitation data from 1893 to 2022.