Records for Helena Area, Montana (HLNthr) on 12-30
Record Highs
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1: 54°F (1917)
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2: 53°F (1904)
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3: 52°F (1997)
Record Lows
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1: -40°F (1880)
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2: -37°F (1968)
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3: -31°F (1978)
Lowest Highs
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1: 41°F (1917)
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2: 38°F (1938)
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3: 38°F (1904)
Highest Lows
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1: -16°F (1880)
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2: -15°F (1968)
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3: -15°F (1923)
Highest December temperature:
70°F on 12-01-2021.
Lowest December temperature:
-40°F on 12-30-1880.
Average temperature is 21.5°F
Average high is 30.9°F
Average low is 12.2°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 0.24" (1919)
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2: 0.22" (1977)
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3: 0.16" (2017)
Precipitation data from 1880 to 2022.