Records for Charleston Area, South Carolina (CHSthr) on 05-21
Record Highs
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1: 99°F (1938)
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2: 96°F (1962)
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3: 94°F (2019)
Record Lows
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1: 45°F (2002)
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2: 50°F (1968)
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3: 50°F (1954)
Lowest Highs
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1: 74°F (2022)
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2: 74°F (2001)
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3: 74°F (1990)
Highest Lows
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1: 66°F (2005)
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2: 70°F (1994)
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3: 72°F (1954)
Highest May temperature:
101°F on 05-28-2019.
Lowest May temperature:
36°F on 05-02-1963.
Average temperature is 74.6°F
Average high is 80°F
Average low is 69.3°F
Temperature data from 1937 to 2022.
Record Precipitation
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1: 1.41" (2013)
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2: 1.28" (1958)
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3: 1.17" (1966)
Precipitation data from 1937 to 2022.