Records for Helena Area, Montana (HLNthr) on 09-12
Record Highs
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1: 91°F (2015)
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2: 91°F (1990)
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3: 91°F (1953)
Record Lows
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1: 22°F (1949)
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2: 26°F (1890)
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3: 27°F (2014)
Lowest Highs
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1: 61°F (1882)
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2: 57°F (1969)
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3: 56°F (1908)
Highest Lows
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1: 37°F (1921)
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2: 38°F (1970)
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3: 38°F (1896)
Highest September temperature:
102°F on 09-07-2022.
Lowest September temperature:
6°F on 09-24-1926.
Average temperature is 60.4°F
Average high is 75°F
Average low is 45.7°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 0.75" (1914)
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2: 0.52" (1993)
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3: 0.35" (1887)
Precipitation data from 1880 to 2022.