Records for Missoula Area, Montana (MSOthr) on 05-21
Record Highs
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1: 90°F (1928)
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2: 90°F (1919)
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3: 88°F (1929)
Record Lows
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1: 28°F (2009)
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2: 28°F (1960)
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3: 28°F (1953)
Lowest Highs
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1: 56°F (1958)
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2: 53°F (1980)
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3: 52°F (2018)
Highest Lows
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1: 46°F (2021)
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2: 48°F (1927)
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3: 50°F (2002)
Highest May temperature:
95°F on 05-29-1936.
Lowest May temperature:
21°F on 05-01-1954.
Average temperature is 55.3°F
Average high is 68.1°F
Average low is 42.4°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 1.54" (1981)
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2: 1.52" (1901)
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3: 0.80" (1915)
Precipitation data from 1893 to 2022.