Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 05-20
Record Highs
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1: 90°F (1964)
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2: 90°F (1954)
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3: 89°F (1936)
Record Lows
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1: 30°F (1968)
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2: 30°F (1931)
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3: 31°F (2019)
Lowest Highs
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1: 61°F (1964)
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2: 61°F (1901)
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3: 60°F (1948)
Highest Lows
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1: 38°F (2019)
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2: 42°F (1915)
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3: 44°F (1908)
Highest May temperature:
99°F on 05-27-1969.
Lowest May temperature:
19°F on 05-01-1909.
Average temperature is 56.5°F
Average high is 66.9°F
Average low is 46.2°F
Temperature data from 1888 to 2022.
Record Precipitation
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1: 4.24" (1899)
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2: 2.35" (1957)
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3: 1.48" (1916)
Precipitation data from 1888 to 2022.