Records for Rapid City Area, South Dakota (RAPthr) on 09-26
Record Highs
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1: 95°F (2014)
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2: 95°F (1974)
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3: 92°F (1956)
Record Lows
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1: 18°F (1942)
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2: 22°F (1972)
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3: 27°F (1965)
Lowest Highs
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1: 57°F (2014)
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2: 57°F (1979)
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3: 57°F (1963)
Highest Lows
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1: 37°F (1965)
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2: 50°F (1996)
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3: 53°F (1964)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 57.6°F
Average high is 68.7°F
Average low is 46.5°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.36" (1966)
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2: 0.05" (1973)
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3: 0.03" (2017)
Precipitation data from 1942 to 2022.