Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 09-23
Record Highs
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1: 92°F (1958)
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2: 90°F (1905)
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3: 89°F (1924)
Record Lows
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1: 28°F (1965)
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2: 28°F (1893)
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3: 29°F (2000)
Lowest Highs
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1: 63°F (2020)
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2: 62°F (1935)
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3: 61°F (1953)
Highest Lows
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1: 36°F (2000)
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2: 45°F (2017)
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3: 46°F (1965)
Highest September temperature:
103°F on 09-02-1960.
Lowest September temperature:
15°F on 09-25-1926.
Average temperature is 59.1°F
Average high is 70.4°F
Average low is 47.8°F
Temperature data from 1888 to 2022.
Record Precipitation
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1: 0.67" (1948)
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2: 0.45" (2006)
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3: 0.43" (1920)
Precipitation data from 1888 to 2022.