Records for Helena Area, Montana (HLNthr) on 12-19
Record Highs
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1: 59°F (2004)
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2: 59°F (1941)
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3: 56°F (1917)
Record Lows
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1: -30°F (1924)
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2: -22°F (1990)
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3: -19°F (1949)
Lowest Highs
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1: 42°F (1933)
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2: 38°F (1922)
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3: 37°F (1941)
Highest Lows
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1: -16°F (1990)
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2: -14°F (1924)
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3: -8°F (1951)
Highest December temperature:
70°F on 12-01-2021.
Lowest December temperature:
-40°F on 12-30-1880.
Average temperature is 22.3°F
Average high is 31.5°F
Average low is 13.1°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 0.77" (1925)
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2: 0.27" (2021)
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3: 0.22" (1960)
Precipitation data from 1880 to 2022.