Records for Helena Area, Montana (HLNthr) on 09-15
Record Highs
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1: 94°F (2000)
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2: 92°F (2002)
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3: 89°F (1998)
Record Lows
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1: 22°F (1970)
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2: 30°F (1969)
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3: 30°F (1965)
Lowest Highs
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1: 56°F (1890)
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2: 54°F (1935)
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3: 54°F (1910)
Highest Lows
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1: 40°F (2017)
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2: 43°F (1973)
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3: 44°F (1900)
Highest September temperature:
102°F on 09-07-2022.
Lowest September temperature:
6°F on 09-24-1926.
Average temperature is 59.3°F
Average high is 73.8°F
Average low is 44.9°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 1.02" (2017)
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2: 0.80" (1987)
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3: 0.74" (1886)
Precipitation data from 1880 to 2022.