Charleston County, SC
Tuesday : a low of 56.6°F averaged over Charleston County, SC, the coldest 29 September night in the county average since 2003, 14th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 85.3°F
- Warmest since 2024
- 21st warmest of 76
- Low
- 56.6°F
- Coldest since 2003
- 14th coldest of 76
No measurable precipitation in the county average of Charleston County, SC for 4 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 55.6 to 72.2°F
Every year as a table
Every 29 September high of the county average in Charleston County, SC since 1951: 85.3°F in 2026; the highest is 93.1°F, in 2017.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 85.3 | 56.6 |
| 2025 | 80.5 | 71 |
| 2024 | 85.6 | 70.3 |
| 2023 | 76.2 | 64.4 |
| 2022 | 71.6 | 59.3 |
| 2021 | 86.2 | 64.2 |
| 2020 | 77.2 | 69.2 |
| 2019 | 89.3 | 69.2 |
| 2018 | 90.2 | 75.3 |
| 2017 | 93.1 | 72.2 |
| 2016 | 88.6 | 70.7 |
| 2015 | 82.7 | 71.1 |
| 2014 | 81.1 | 69.3 |
| 2013 | 77.3 | 58.8 |
| 2012 | 86.2 | 65.2 |
| 2011 | 88.6 | 68.5 |
| 2010 | 79.6 | 66.5 |
| 2009 | 86.1 | 59.1 |
| 2008 | 84.4 | 66 |
| 2007 | 89.5 | 64.9 |
| 2006 | 81.2 | 60.2 |
| 2005 | 85.5 | 68.6 |
| 2004 | 87.1 | 68.5 |
| 2003 | 81.1 | 54.3 |
| 2002 | 85.1 | 72.4 |
| 2001 | 73.2 | 52.8 |
| 2000 | 75.7 | 55.6 |
| 1999 | 82.1 | 70.9 |
| 1998 | 87.7 | 74.2 |
| 1997 | 85.1 | 66.1 |
| 1996 | 85.1 | 67.9 |
| 1995 | 82.4 | 63.2 |
| 1994 | 84.4 | 63 |
| 1993 | 78.2 | 55.6 |
| 1992 | 78.4 | 65.8 |
| 1991 | 77.2 | 55.4 |
| 1990 | 83 | 63.4 |
| 1989 | 78.6 | 61.5 |
| 1988 | 82.8 | 66.2 |
| 1987 | 82.8 | 63.2 |
| 1986 | 91.3 | 72.9 |
| 1985 | 80.3 | 54.1 |
| 1984 | 67.3 | 55.7 |
| 1983 | 75.9 | 57.6 |
| 1982 | 82 | 60.1 |
| 1981 | 86.9 | 62 |
| 1980 | 69.5 | 61.8 |
| 1979 | 83.3 | 71 |
| 1978 | 82.5 | 56.9 |
| 1977 | 83.8 | 59.8 |
| 1976 | 84.2 | 71.7 |
| 1975 | 78.2 | 62.4 |
| 1974 | 88.2 | 71.1 |
| 1973 | 85.8 | 65 |
| 1972 | 89.9 | 68.5 |
| 1971 | 84.2 | 64 |
| 1970 | 70.1 | 54.4 |
| 1969 | 83.2 | 60.8 |
| 1968 | 84.2 | 65.3 |
| 1967 | 82.3 | 56.3 |
| 1966 | 78.2 | 69.1 |
| 1965 | 69.7 | 61.6 |
| 1964 | 86.2 | 67.4 |
| 1963 | 77.7 | 66.7 |
| 1962 | 73 | 51.9 |
| 1961 | 84.1 | 64 |
| 1960 | 79.9 | 64.1 |
| 1959 | 84.3 | 69.4 |
| 1958 | 77.5 | 55.9 |
| 1957 | 67.1 | 55.7 |
| 1956 | 76.2 | 52.9 |
| 1955 | 85.3 | 68 |
| 1954 | 86.2 | 67.7 |
| 1953 | 84.9 | 65.1 |
| 1952 | 79.2 | 63.4 |
| 1951 | 84.1 | 65.8 |
The month
September 2026 so far averaged 77.9°F in Charleston County, SC, the warmest 1 to 29 September in the county average since 2019, 11th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
The month in words
- August 2026 averaged 82.8°F in Charleston County, SC, the warmest August in the county average since 2007, 5th warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
- Tuesday 29 September 2026: a high of 85.3°F averaged over Charleston County, SC, the warmest 29 September in the county average since 2024, tied 21st warmest of 76 (with 1955) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Charleston Downtown, SC 2.1 mi, the nearest city with its own station