Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 09-18
Record Highs
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1: 96°F (2021)
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2: 96°F (2004)
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3: 94°F (1998)
Record Lows
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1: 27°F (1901)
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2: 32°F (1965)
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3: 33°F (1942)
Lowest Highs
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1: 64°F (1943)
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2: 62°F (2000)
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3: 61°F (1933)
Highest Lows
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1: 41°F (1942)
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2: 43°F (2010)
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3: 44°F (1945)
Highest September temperature:
103°F on 09-02-1960.
Lowest September temperature:
15°F on 09-25-1926.
Average temperature is 61.5°F
Average high is 73.1°F
Average low is 50°F
Temperature data from 1888 to 2022.
Record Precipitation
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1: 1.01" (1946)
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2: 0.65" (1942)
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3: 0.61" (2002)
Precipitation data from 1888 to 2022.