Weather on August 15
Charleston, SC
55 Years of Data
Avg High
87°F
Avg Low
76°F
Warmest
1984
86°F avg
Coldest
2013
72°F avg
About This Date
August 15th in Charleston, SC typically brings warm summer weather, with average highs around 87°F and lows near 76°F. Over 55 years of records, the warmest August 15th was in 1984 (86°F average), while the coldest was 2013 (72°F) — a 14°F range across recorded history. Rain or other precipitation has occurred on about 25% of August 15th dates historically, with the wettest August 15th recording 9.27" of rain. The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.6°F warmer on this date compared to 20-30 years ago.
Planning for August 15th in Charleston, SC? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 89° | 81° | 85° | — | — |
| 2024 | 85° | 75° | 80° | — | — |
| 2023 | 90° | 78° | 84° | — | — |
| 2022 | 87° | 76° | 81° | — | — |
| 2021 | 89° | 83° | 86° | — | — |
| 2020 | 86° | 77° | 82° | 1.07" | — |
| 2019 | 88° | 79° | 83° | — | — |
| 2018 | 86° | 77° | 82° | — | — |
| 2017 | 93° | 78° | 86° | — | — |
| 2016 | 89° | 82° | 86° | — | — |
| 2015 | 85° | 76° | 80° | — | — |
| 2014 | 85° | 78° | 81° | — | — |
| 2013coldest | 78° | 66° | 72° | 4.47" | — |
| 2012 | 90° | 78° | 84° | — | — |
| 2011 | 91° | 75° | 83° | — | — |
| 2010 | 85° | 76° | 80° | 9.27" | — |
| 2009 | 83° | 76° | 79° | — | — |
| 2008 | 84° | 75° | 80° | — | — |
| 2007 | 87° | 83° | 85° | — | — |
| 2006 | 84° | 76° | 80° | — | — |
| 2005 | 89° | 79° | 84° | 0.08" | — |
| 2004 | 80° | 73° | 77° | 2.87" | — |
| 2003 | 84° | 77° | 81° | — | — |
| 2002 | 85° | 79° | 82° | — | — |
| 2001 | 86° | 73° | 80° | — | — |
| 2000 | 92° | 76° | 84° | — | — |
| 1999 | 90° | 77° | 83° | — | — |
| 1998 | 91° | 81° | 86° | — | — |
| 1997 | 92° | 79° | 85° | — | — |
| 1996 | 82° | 72° | 77° | — | — |
| 1995 | 88° | 82° | 85° | — | — |
| 1994 | 84° | 72° | 78° | 3.35" | — |
| 1993 | 86° | 76° | 81° | — | — |
| 1992 | 80° | 75° | 78° | 2.59" | — |
| 1991 | 87° | 75° | 81° | — | — |
| 1990 | 87° | 77° | 82° | — | — |
| 1989 | 81° | 74° | 77° | 1.37" | — |
| 1988 | 82° | 76° | 79° | 0.71" | — |
| 1987 | 86° | 73° | 80° | — | — |
| 1986 | 86° | 75° | 81° | 0.43" | — |
| 1985 | 91° | 78° | 85° | — | — |
| 1984warmest | 94° | 79° | 86° | — | — |
| 1983 | 82° | 68° | 75° | — | — |
| 1982 | 85° | 73° | 79° | — | — |
| 1981 | 87° | 75° | 81° | — | — |
| 1980 | 91° | 77° | 84° | — | — |
| 1979 | 90° | 75° | 82° | — | — |
| 1978 | 92° | 78° | 85° | — | — |
| 1977 | 87° | 73° | 80° | 3.56" | — |
| 1976 | 90° | 77° | 83° | — | — |
| 1975 | 93° | 77° | 85° | — | — |
| 1974 | 84° | 73° | 79° | 0.25" | — |
| 1973 | 90° | 77° | 83° | 0.05" | — |
| 1972 | 91° | 77° | 84° | — | — |
| 1971 | 80° | 75° | 78° | 4.57" | — |
55 years of data from DWTN CHARLESTON