Records for Charleston Downtown Area, South Carolina (CXMthr) on 09-21
Record Highs
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1: 93°F (1925)
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2: 92°F (1988)
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3: 92°F (1977)
Record Lows
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1: 54°F (1918)
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2: 57°F (1897)
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3: 58°F (1962)
Lowest Highs
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1: 80°F (2010)
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2: 80°F (1925)
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3: 79°F (1958)
Highest Lows
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1: 68°F (1918)
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2: 70°F (1969)
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3: 72°F (1994)
Highest September temperature:
100°F on 09-01-1912.
Lowest September temperature:
50°F on 09-29-1942.
Average temperature is 76.6°F
Average high is 81.7°F
Average low is 71.5°F
Temperature data from 1893 to 2022.
Record Precipitation
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1: 8.50" (1998)
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2: 5.99" (1989)
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3: 1.21" (1993)
Precipitation data from 1893 to 2022.