Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 05-18
Record Highs
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1: 90°F (1948)
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2: 90°F (1941)
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3: 90°F (1934)
Record Lows
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1: 22°F (1888)
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2: 28°F (1915)
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3: 31°F (1942)
Lowest Highs
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1: 62°F (1948)
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2: 61°F (1964)
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3: 60°F (1893)
Highest Lows
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1: 42°F (2019)
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2: 46°F (1915)
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3: 46°F (1913)
Highest May temperature:
99°F on 05-27-1969.
Lowest May temperature:
19°F on 05-01-1909.
Average temperature is 55.8°F
Average high is 66.1°F
Average low is 45.4°F
Temperature data from 1888 to 2022.
Record Precipitation
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1: 1.79" (2018)
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2: 1.33" (1962)
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3: 1.00" (1935)
Precipitation data from 1888 to 2022.