Records for Rapid City Area, South Dakota (RAPthr) on 09-02
Record Highs
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1: 104°F (1960)
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2: 101°F (1971)
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3: 99°F (1998)
Record Lows
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1: 38°F (2008)
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2: 38°F (1974)
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3: 40°F (1972)
Lowest Highs
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1: 64°F (2019)
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2: 64°F (1983)
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3: 63°F (1991)
Highest Lows
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1: 57°F (1973)
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2: 60°F (1994)
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3: 61°F (1974)
Highest September temperature:
104°F on 09-02-1960.
Lowest September temperature:
18°F on 09-24-1985.
Average temperature is 67.9°F
Average high is 80°F
Average low is 55.8°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 0.75" (1986)
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2: 0.57" (1973)
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3: 0.40" (1968)
Precipitation data from 1942 to 2022.