Records for Rapid City Area, South Dakota (RAPthr) on 09-14
Record Highs
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1: 100°F (1948)
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2: 95°F (1959)
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3: 94°F (2020)
Record Lows
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1: 24°F (1993)
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2: 29°F (2007)
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3: 32°F (2014)
Lowest Highs
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1: 59°F (2017)
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2: 59°F (2006)
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3: 59°F (1994)
Highest Lows
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1: 43°F (1970)
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2: 50°F (1982)
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3: 51°F (1986)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 63.4°F
Average high is 75.1°F
Average low is 51.6°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.46" (2001)
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2: 0.43" (1982)
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3: 0.27" (1973)
Precipitation data from 1942 to 2022.