Records for Rapid City Area, South Dakota (RAPthr) on 09-23
Record Highs
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1: 97°F (1992)
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2: 95°F (1958)
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3: 90°F (2011)
Record Lows
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1: 24°F (1985)
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2: 28°F (1965)
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3: 29°F (1942)
Lowest Highs
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1: 58°F (2007)
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2: 57°F (1948)
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3: 56°F (2015)
Highest Lows
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1: 38°F (2000)
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2: 45°F (1951)
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3: 46°F (1965)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 59.1°F
Average high is 70.4°F
Average low is 47.8°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 1.32" (1977)
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2: 0.45" (2010)
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3: 0.42" (2006)
Precipitation data from 1942 to 2022.