Records for Rapid City Area, South Dakota (RAPthr) on 05-09
Record Highs
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1: 86°F (1962)
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2: 84°F (1944)
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3: 83°F (1987)
Record Lows
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1: 25°F (2002)
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2: 27°F (2020)
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3: 27°F (2014)
Lowest Highs
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1: 62°F (1985)
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2: 56°F (1991)
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3: 53°F (2011)
Highest Lows
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1: 36°F (1979)
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2: 37°F (1948)
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3: 42°F (1945)
Highest May temperature:
98°F on 05-27-1969.
Lowest May temperature:
18°F on 05-01-1950.
Average temperature is 52.4°F
Average high is 62.7°F
Average low is 42.1°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 1.17" (2015)
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2: 0.80" (1992)
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3: 0.60" (2008)
Precipitation data from 1942 to 2022.