Records for Helena Area, Montana (HLNthr) on 12-17
Record Highs
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1: 58°F (1998)
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2: 54°F (1885)
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3: 53°F (1942)
Record Lows
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1: -38°F (1964)
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2: -28°F (2016)
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3: -25°F (1924)
Lowest Highs
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1: 38°F (1917)
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2: 37°F (1939)
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3: 35°F (1985)
Highest Lows
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1: -16°F (1924)
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2: -9°F (2016)
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3: -8°F (1964)
Highest December temperature:
70°F on 12-01-2021.
Lowest December temperature:
-40°F on 12-30-1880.
Average temperature is 22.7°F
Average high is 31.8°F
Average low is 13.5°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 0.17" (1955)
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2: 0.15" (1963)
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3: 0.09" (1945)
Precipitation data from 1880 to 2022.