Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 09-12
Record Highs
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1: 96°F (2004)
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2: 94°F (1934)
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3: 92°F (2018)
Record Lows
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1: 32°F (2014)
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2: 32°F (1903)
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3: 34°F (1949)
Lowest Highs
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1: 67°F (1908)
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2: 65°F (1939)
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3: 64°F (1919)
Highest Lows
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1: 48°F (1910)
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2: 48°F (1903)
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3: 49°F (1961)
Highest September temperature:
103°F on 09-02-1960.
Lowest September temperature:
15°F on 09-25-1926.
Average temperature is 64.2°F
Average high is 76.1°F
Average low is 52.4°F
Temperature data from 1888 to 2022.
Record Precipitation
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1: 1.20" (2009)
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2: 1.00" (1903)
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3: 0.56" (1927)
Precipitation data from 1888 to 2022.