Records for Des Moines Area, Iowa (DSMthr) on 05-20
Record Highs
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1: 94°F (1925)
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2: 92°F (1934)
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3: 90°F (1975)
Record Lows
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1: 35°F (1892)
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2: 37°F (1907)
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3: 38°F (1931)
Lowest Highs
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1: 73°F (1975)
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2: 69°F (2004)
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3: 68°F (1974)
Highest Lows
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1: 47°F (1892)
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2: 52°F (1899)
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3: 53°F (2015)
Highest May temperature:
105°F on 05-30-1934.
Lowest May temperature:
26°F on 05-04-1907.
Average temperature is 63.9°F
Average high is 73.8°F
Average low is 53.9°F
Temperature data from 1878 to 2022.
Record Precipitation
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1: 2.01" (1950)
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2: 1.85" (1937)
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3: 1.07" (1944)
Precipitation data from 1878 to 2022.