Records for Rapid City Area, South Dakota (RAPthr) on 09-29
Record Highs
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1: 92°F (2022)
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2: 90°F (2007)
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3: 87°F (1992)
Record Lows
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1: 21°F (1984)
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2: 26°F (1999)
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3: 29°F (1985)
Lowest Highs
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1: 57°F (1995)
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2: 57°F (1957)
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3: 56°F (1967)
Highest Lows
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1: 40°F (1985)
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2: 44°F (1965)
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3: 44°F (1959)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 56.1°F
Average high is 67°F
Average low is 45.2°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 2.05" (2014)
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2: 0.44" (1965)
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3: 0.23" (1950)
Precipitation data from 1942 to 2022.