Records for Helena Area, Montana (HLNthr) on 05-31
Record Highs
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1: 88°F (1956)
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2: 86°F (2009)
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3: 86°F (1986)
Record Lows
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1: 27°F (1917)
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2: 31°F (1982)
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3: 32°F (1951)
Lowest Highs
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1: 65°F (1936)
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2: 61°F (1887)
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3: 58°F (2020)
Highest Lows
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1: 41°F (1951)
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2: 46°F (2000)
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3: 46°F (1895)
Highest May temperature:
95°F on 05-28-1919.
Lowest May temperature:
17°F on 05-02-1954.
Average temperature is 58°F
Average high is 70.3°F
Average low is 45.7°F
Temperature data from 1880 to 2022.
Record Precipitation
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1: 0.95" (2018)
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2: 0.77" (1908)
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3: 0.47" (1958)
Precipitation data from 1880 to 2022.