Records for Rapid City Area, South Dakota (RAPthr) on 09-04
Record Highs
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1: 104°F (1960)
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2: 103°F (2001)
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3: 100°F (1998)
Record Lows
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1: 34°F (1962)
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2: 38°F (2010)
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3: 38°F (1961)
Lowest Highs
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1: 66°F (1960)
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2: 65°F (1978)
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3: 65°F (1948)
Highest Lows
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1: 50°F (1956)
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2: 55°F (1999)
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3: 57°F (1971)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 67.3°F
Average high is 79.3°F
Average low is 55.2°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 1.11" (1971)
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2: 0.20" (2004)
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3: 0.15" (1992)
Precipitation data from 1942 to 2022.