Weather on May 12
Charleston, SC
55 Years of Data
Avg High
79°F
Avg Low
66°F
Warmest
2000
82°F avg
Coldest
1989
61°F avg
About This Date
May 12th in Charleston, SC typically brings pleasant spring weather, with average highs around 79°F and lows near 66°F. Over 55 years of records, the warmest May 12th was in 2000 (82°F average), while the coldest was 1989 (61°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 16% of May 12th dates historically, with the wettest May 12th recording 3.4" of rain. The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.2°F cooler on this date compared to 20-30 years ago.
Planning for May 12th in Charleston, SC? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 71° | 73° | 0.43" | — |
| 2024 | 79° | 65° | 72° | — | — |
| 2023 | 76° | 71° | 73° | — | — |
| 2022 | 72° | 65° | 68° | — | — |
| 2021 | 74° | 53° | 63° | 2.51" | — |
| 2020 | 67° | 55° | 61° | — | — |
| 2019 | 82° | 70° | 76° | 0.46" | — |
| 2018 | 83° | 71° | 77° | — | — |
| 2017 | 81° | 73° | 77° | — | — |
| 2016 | 83° | 71° | 77° | — | — |
| 2015 | 82° | 73° | 78° | — | — |
| 2014 | 82° | 73° | 78° | — | — |
| 2013 | 83° | 68° | 75° | 0.03" | — |
| 2012 | 75° | 72° | 73° | — | — |
| 2011 | 77° | 71° | 74° | — | — |
| 2010 | 78° | 70° | 74° | — | — |
| 2009 | 70° | 57° | 63° | — | — |
| 2008 | 77° | 61° | 69° | — | — |
| 2007 | 79° | 69° | 74° | — | — |
| 2006 | 76° | 59° | 67° | — | — |
| 2005 | 79° | 69° | 74° | — | — |
| 2004 | 78° | 73° | 76° | — | — |
| 2003 | 85° | 68° | 76° | — | — |
| 2002 | 79° | 73° | 76° | — | — |
| 2001 | 87° | 67° | 77° | 0.05" | — |
| 2000warmest | 93° | 71° | 82° | — | — |
| 1999 | 73° | 67° | 70° | 1.47" | — |
| 1998 | 83° | 69° | 76° | — | — |
| 1997 | 73° | 63° | 68° | 1.02" | — |
| 1996 | 81° | 67° | 74° | — | — |
| 1995 | 88° | 73° | 80° | — | — |
| 1994 | 87° | 69° | 78° | — | — |
| 1993 | 79° | 67° | 73° | — | — |
| 1992 | 76° | 62° | 69° | — | — |
| 1991 | 79° | 74° | 76° | — | — |
| 1990 | 73° | 66° | 70° | — | — |
| 1989coldest | 69° | 54° | 61° | — | — |
| 1988 | 75° | 64° | 70° | — | — |
| 1987 | 75° | 67° | 71° | — | — |
| 1986 | 83° | 66° | 74° | 1.45" | — |
| 1985 | 80° | 68° | 74° | — | — |
| 1984 | 83° | 64° | 73° | — | — |
| 1983 | 82° | 64° | 73° | — | — |
| 1982 | 78° | 66° | 72° | — | — |
| 1981 | 75° | 54° | 64° | — | — |
| 1980 | 83° | 68° | 75° | — | — |
| 1979 | 80° | 65° | 72° | — | — |
| 1978 | 79° | 68° | 73° | — | — |
| 1977 | 78° | 58° | 68° | — | — |
| 1976 | 86° | 64° | 75° | — | — |
| 1975 | 81° | 63° | 72° | — | — |
| 1974 | 80° | 66° | 73° | 3.4" | — |
| 1973 | 88° | 68° | 78° | — | — |
| 1972 | 74° | 62° | 68° | — | — |
| 1971 | 79° | 70° | 74° | — | — |
55 years of data from DWTN CHARLESTON