Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 09-22
Record Highs
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1: 94°F (1936)
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2: 94°F (1930)
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3: 94°F (1922)
Record Lows
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1: 30°F (1895)
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2: 31°F (2000)
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3: 33°F (1971)
Lowest Highs
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1: 65°F (1936)
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2: 61°F (1922)
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3: 60°F (1938)
Highest Lows
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1: 43°F (1960)
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2: 44°F (2000)
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3: 49°F (2006)
Highest September temperature:
103°F on 09-02-1960.
Lowest September temperature:
15°F on 09-25-1926.
Average temperature is 59.6°F
Average high is 70.9°F
Average low is 48.3°F
Temperature data from 1888 to 2022.
Record Precipitation
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1: 0.92" (2006)
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2: 0.58" (1960)
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3: 0.48" (1997)
Precipitation data from 1888 to 2022.