Records for Rapid City Area, South Dakota (RAPthr) on 09-07
Record Highs
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1: 99°F (1983)
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2: 99°F (1978)
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3: 98°F (2002)
Record Lows
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1: 32°F (2020)
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2: 34°F (1986)
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3: 38°F (2010)
Lowest Highs
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1: 68°F (1991)
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2: 65°F (2013)
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3: 61°F (2003)
Highest Lows
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1: 53°F (2008)
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2: 54°F (1946)
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3: 57°F (2020)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 66.2°F
Average high is 78.2°F
Average low is 54.2°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.96" (2020)
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2: 0.86" (1946)
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3: 0.44" (1945)
Precipitation data from 1942 to 2022.