Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 08-21
Record Highs
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1: 99°F (1898)
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2: 98°F (2010)
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3: 98°F (2008)
Record Lows
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1: 45°F (1964)
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2: 45°F (1916)
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3: 46°F (1904)
Lowest Highs
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1: 71°F (2008)
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2: 69°F (2020)
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3: 69°F (2001)
Highest Lows
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1: 58°F (1923)
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2: 61°F (1966)
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3: 62°F (1964)
Highest August temperature:
106°F on 08-01-1900.
Lowest August temperature:
36°F on 08-28-1911.
Average temperature is 71°F
Average high is 82.8°F
Average low is 59.1°F
Temperature data from 1888 to 2022.
Record Precipitation
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1: 0.60" (1964)
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2: 0.50" (1903)
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3: 0.42" (1924)
Precipitation data from 1888 to 2022.