Weather on August 12
Charleston, SC
55 Years of Data
Avg High
87°F
Avg Low
76°F
Warmest
1998
89°F avg
Coldest
1989
74°F avg
About This Date
August 12th 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 12th was in 1998 (89°F average), while the coldest was 1989 (74°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 45% of August 12th dates historically, with the wettest August 12th recording 6.4" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for August 12th in Charleston, SC? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.
Warming Trend
0.6°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 88° | 81° | 84° | — | — |
| 2024 | 90° | 80° | 85° | 0.03" | — |
| 2023 | 91° | 80° | 86° | — | — |
| 2022 | 85° | 74° | 79° | 1.83" | — |
| 2021 | 90° | 83° | 86° | 0.2" | — |
| 2020 | 88° | 78° | 83° | 0.05" | — |
| 2019 | 86° | 81° | 83° | — | — |
| 2018 | 88° | 80° | 84° | — | — |
| 2017 | 88° | 78° | 83° | 0.81" | — |
| 2016 | 87° | 81° | 84° | — | — |
| 2015 | 89° | 79° | 84° | — | — |
| 2014 | 87° | 77° | 82° | 0.05" | — |
| 2013 | 94° | 80° | 87° | — | — |
| 2012 | 86° | 77° | 82° | 2.18" | — |
| 2011 | 86° | 78° | 82° | — | — |
| 2010 | 92° | 81° | 86° | — | — |
| 2009 | 90° | 77° | 83° | 0.1" | — |
| 2008 | 84° | 73° | 79° | 5.23" | — |
| 2007 | 85° | 77° | 81° | 0.05" | — |
| 2006 | 82° | 72° | 77° | 3.15" | — |
| 2005 | 87° | 77° | 82° | 0.3" | — |
| 2004 | 83° | 73° | 78° | 6.4" | — |
| 2003 | 82° | 78° | 80° | — | — |
| 2002 | 88° | 73° | 80° | — | — |
| 2001 | 89° | 79° | 84° | — | — |
| 2000 | 87° | 74° | 80° | 1.14" | — |
| 1999 | 92° | 83° | 87° | — | — |
| 1998warmest | 98° | 80° | 89° | 0.05" | — |
| 1997 | 87° | 74° | 80° | — | — |
| 1996 | 84° | 76° | 80° | 0.94" | — |
| 1995 | 91° | 78° | 85° | — | — |
| 1994 | 83° | 78° | 80° | — | — |
| 1993 | 85° | 75° | 80° | — | — |
| 1992 | 88° | 80° | 84° | — | — |
| 1991 | 89° | 74° | 81° | 4.06" | — |
| 1990 | 88° | 79° | 83° | — | — |
| 1989coldest | 78° | 69° | 74° | — | — |
| 1988 | 84° | 78° | 81° | — | — |
| 1987 | 84° | 76° | 80° | — | — |
| 1986 | 81° | 76° | 78° | 0.71" | — |
| 1985 | 90° | 77° | 83° | — | — |
| 1984 | 90° | 74° | 82° | 0.97" | — |
| 1983 | 93° | 72° | 82° | 1.6" | — |
| 1982 | 92° | 76° | 84° | 1.04" | — |
| 1981 | 84° | 75° | 80° | 0.15" | — |
| 1980 | 93° | 76° | 84° | 0.79" | — |
| 1979 | 86° | 69° | 78° | — | — |
| 1978 | 88° | 72° | 80° | 4.24" | — |
| 1977 | 91° | 79° | 85° | — | — |
| 1976 | 86° | 76° | 81° | — | — |
| 1975 | 90° | 73° | 81° | — | — |
| 1974 | 82° | 71° | 77° | — | — |
| 1973 | 90° | 74° | 82° | — | — |
| 1972 | 85° | 70° | 77° | — | — |
| 1971 | 88° | 76° | 82° | 0.56" | — |
55 years of data from DWTN CHARLESTON