Weather on May 15
Charleston, SC
55 Years of Data
Avg High
79°F
Avg Low
68°F
Warmest
1995
81°F avg
Coldest
1984
65°F avg
About This Date
May 15th in Charleston, SC typically brings pleasant spring weather, with average highs around 79°F and lows near 68°F. Over 55 years of records, the warmest May 15th was in 1995 (81°F average), while the coldest was 1984 (65°F) — a 16°F range across recorded history. Rain or other precipitation has occurred on about 20% of May 15th dates historically, with the wettest May 15th recording 5.92" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.
Planning for May 15th in Charleston, SC? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 82° | 74° | 78° | — | — |
| 2024 | 82° | 72° | 77° | — | — |
| 2023 | 77° | 72° | 74° | — | — |
| 2022 | 81° | 69° | 75° | — | — |
| 2021 | 75° | 60° | 68° | — | — |
| 2020 | 77° | 69° | 73° | — | — |
| 2019 | 71° | 63° | 67° | — | — |
| 2018 | 79° | 75° | 77° | 0.03" | — |
| 2017 | 85° | 66° | 75° | — | — |
| 2016 | 74° | 64° | 69° | — | — |
| 2015 | 75° | 70° | 72° | — | — |
| 2014 | 78° | 71° | 75° | 2.21" | — |
| 2013 | 79° | 64° | 71° | — | — |
| 2012 | 80° | 73° | 77° | — | — |
| 2011 | 81° | 66° | 73° | 0.36" | — |
| 2010 | 80° | 70° | 75° | — | — |
| 2009 | 78° | 72° | 75° | — | — |
| 2008 | 76° | 68° | 72° | — | — |
| 2007 | 75° | 65° | 70° | — | — |
| 2006 | 71° | 65° | 68° | 0.15" | — |
| 2005 | 78° | 69° | 74° | — | — |
| 2004 | 78° | 73° | 76° | — | — |
| 2003 | 76° | 64° | 70° | 1.88" | — |
| 2002 | 72° | 63° | 67° | — | — |
| 2001 | 88° | 67° | 77° | — | — |
| 2000 | 78° | 68° | 73° | — | — |
| 1999 | 77° | 58° | 67° | — | — |
| 1998 | 81° | 67° | 74° | — | — |
| 1997 | 83° | 69° | 76° | — | — |
| 1996 | 70° | 60° | 65° | — | — |
| 1995warmest | 93° | 70° | 81° | 2.57" | — |
| 1994 | 82° | 71° | 77° | 0.03" | — |
| 1993 | 77° | 65° | 71° | — | — |
| 1992 | 76° | 69° | 72° | — | — |
| 1991 | 87° | 73° | 80° | — | — |
| 1990 | 80° | 72° | 76° | — | — |
| 1989 | 84° | 67° | 75° | — | — |
| 1988 | 80° | 66° | 73° | — | — |
| 1987 | 75° | 70° | 72° | — | — |
| 1986 | 74° | 68° | 71° | — | — |
| 1985 | 82° | 70° | 76° | — | — |
| 1984coldest | 70° | 60° | 65° | — | — |
| 1983 | 81° | 69° | 75° | — | — |
| 1982 | 85° | 67° | 76° | — | — |
| 1981 | 84° | 66° | 75° | — | — |
| 1980 | 74° | 69° | 71° | — | — |
| 1979 | 76° | 63° | 69° | — | — |
| 1978 | 75° | 60° | 68° | 0.89" | — |
| 1977 | 90° | 68° | 79° | — | — |
| 1976 | 80° | 71° | 76° | 2.36" | — |
| 1975 | 83° | 73° | 78° | 0.03" | — |
| 1974 | 80° | 69° | 75° | — | — |
| 1973 | 77° | 63° | 70° | — | — |
| 1972 | 81° | 70° | 75° | — | — |
| 1971 | 70° | 65° | 67° | 5.92" | — |
55 years of data from DWTN CHARLESTON