Records for Rapid City Area, South Dakota (RAPthr) on 12-31
Record Highs
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1: 62°F (1963)
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2: 58°F (1953)
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3: 57°F (1997)
Record Lows
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1: -21°F (2017)
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2: -19°F (1978)
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3: -19°F (1967)
Lowest Highs
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1: 32°F (1980)
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2: 29°F (1963)
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3: 28°F (1993)
Highest Lows
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1: -6°F (2017)
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2: -4°F (1992)
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3: -3°F (1978)
Highest December temperature:
75°F on 12-02-2021.
Lowest December temperature:
-30°F on 12-30-1990.
Average temperature is 26.7°F
Average high is 36.4°F
Average low is 16.9°F
Temperature data from 1942 to 2022.
Record Precipitation
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1: 1.04" (1975)
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2: 0.18" (1969)
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3: 0.17" (2010)
Precipitation data from 1942 to 2022.