Records for Rapid City Area, South Dakota (RAPthr) on 09-10
Record Highs
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1: 100°F (2012)
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2: 99°F (1998)
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3: 98°F (1952)
Record Lows
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1: 27°F (2020)
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2: 28°F (1962)
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3: 32°F (1989)
Lowest Highs
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1: 64°F (1942)
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2: 61°F (1994)
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3: 61°F (1990)
Highest Lows
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1: 45°F (2014)
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2: 50°F (1950)
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3: 51°F (1955)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 65.1°F
Average high is 77°F
Average low is 53.1°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.86" (2003)
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2: 0.37" (1989)
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3: 0.36" (1991)
Precipitation data from 1942 to 2022.