Records for Rapid City Area, South Dakota (RAPthr) on 09-28
Record Highs
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1: 94°F (2021)
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2: 92°F (1994)
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3: 91°F (1957)
Record Lows
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1: 25°F (1951)
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2: 26°F (1984)
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3: 27°F (1945)
Lowest Highs
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1: 55°F (2021)
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2: 55°F (1989)
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3: 55°F (1962)
Highest Lows
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1: 34°F (1985)
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2: 42°F (1965)
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3: 47°F (2018)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 56.6°F
Average high is 67.5°F
Average low is 45.6°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.57" (2019)
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2: 0.39" (1965)
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3: 0.38" (1988)
Precipitation data from 1942 to 2022.