Records for Rapid City Area, South Dakota (RAPthr) on 05-18
Record Highs
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1: 92°F (1992)
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2: 90°F (2007)
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3: 90°F (2006)
Record Lows
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1: 29°F (1943)
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2: 33°F (2019)
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3: 34°F (2016)
Lowest Highs
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1: 65°F (1948)
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2: 59°F (1994)
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3: 58°F (1972)
Highest Lows
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1: 44°F (2019)
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2: 47°F (1971)
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3: 50°F (2017)
Highest May temperature:
98°F on 05-27-1969.
Lowest May temperature:
18°F on 05-01-1950.
Average temperature is 55.8°F
Average high is 66.1°F
Average low is 45.4°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.79" (1962)
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2: 0.72" (1977)
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3: 0.56" (1978)
Precipitation data from 1942 to 2022.