Records for Helena Area, Montana (HLNthr) on 09-30
Record Highs
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1: 89°F (1963)
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2: 87°F (1997)
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3: 86°F (1946)
Record Lows
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1: 21°F (1950)
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2: 22°F (1985)
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3: 26°F (1958)
Lowest Highs
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1: 56°F (2005)
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2: 55°F (2000)
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3: 55°F (1887)
Highest Lows
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1: 38°F (1954)
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2: 38°F (1950)
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3: 39°F (1983)
Highest September temperature:
102°F on 09-07-2022.
Lowest September temperature:
6°F on 09-24-1926.
Average temperature is 53.3°F
Average high is 66.5°F
Average low is 40°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 1.63" (1893)
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2: 0.80" (2009)
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3: 0.51" (2022)
Precipitation data from 1880 to 2022.