Charleston, SC All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Charleston, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 104°F (40°C) | June 24, 1944 and June 2, 1985 |
| Record Low | 6.9°F (-14°C) | February 14, 1899 |
| Lowest High | 21°F (-6°C) | December 23, 1989 |
| Highest Low | 86°F (30°C) | July 1, 1998 and August 1, 1999 |
| Highest Mean | 94.5°F (35°C) | August 1, 1999 |
| Lowest Mean | 17.5°F (-8°C) | December 30, 1917 |
| Precipitation | ||
| Max in One Calendar Day | 10.38" (263.7 mm) | June 11, 1973 |
| Max in One Month | 23.75" (603.2 mm) | July 1964 |
| Least in One Month | 0.00" (0.0 mm) | April 1972 |
| Max in One Year | 74.89" (1902.1 mm) | 1945 |
| Least in One Year | 27.64" (702.1 mm) | 2000 |
| Snowfall | ||
| Max in One Calendar Day | 3.2" (8.1 cm) | February 13, 1899 |
| Max in One Month | 3.9" (9.9 cm) | February 1899 |
| Max in One Season | 3.9" (9.9 cm) | 1898-99 |
| Max in One Year | 4.4" (11.2 cm) | 1899 |
| Earliest Snow | 2.5" (6.4 cm) | December 15, 1943 |
| Earliest Measurable Snow | 2.5" (6.4 cm) | December 15, 1943 |
| Latest Snow | 1.0" (2.5 cm) | March 11, 1960 |
| Latest Measurable Snow | 1.0" (2.5 cm) | March 11, 1960 |
| Period of Record | ||
| Temperature | January 1, 1893 – February 6, 2025 | |
| Precipitation | January 1, 1893 – February 6, 2025 | |
| Snowfall | January 1, 1893 – June 28, 1992 | |
Note: Records compiled from NOAA GHCN-Daily observations at DWTN CHARLESTON. Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in Charleston, SC?
The all-time record high in Charleston, SC is 104°F (40°C), set on June 24, 1944 and June 2, 1985.
What is the coldest temperature ever recorded in Charleston, SC?
The all-time record low in Charleston, SC is 6.9°F (-14°C), set on February 14, 1899.
What is the most rain Charleston, SC has ever had in one day?
The most precipitation recorded in one calendar day near Charleston, SC is 10.38 inches, on June 11, 1973.
What is the biggest snowfall ever recorded in Charleston, SC?
The most snow recorded in one calendar day near Charleston, SC is 3.2 inches, on February 13, 1899.
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Charleston Weather History
Monthly averages, records, and climate data for Charleston
South Carolina Weather Extremes
Statewide records and extremes for other South Carolina cities