Records for Helena Area, Montana (HLNthr) on 05-01
Record Highs
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1: 82°F (2000)
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2: 81°F (2007)
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3: 81°F (1981)
Record Lows
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1: 20°F (1954)
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2: 21°F (1995)
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3: 22°F (2019)
Lowest Highs
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1: 54°F (2021)
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2: 51°F (1930)
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3: 48°F (1978)
Highest Lows
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1: 31°F (1899)
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2: 33°F (1954)
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3: 36°F (1883)
Highest May temperature:
95°F on 05-28-1919.
Lowest May temperature:
17°F on 05-02-1954.
Average temperature is 49.1°F
Average high is 61.6°F
Average low is 36.6°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 1.14" (1912)
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2: 0.80" (1888)
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3: 0.62" (1938)
Precipitation data from 1880 to 2022.