Weather on March 18
Charleston, SC
55 Years of Data
Avg High
65°F
Avg Low
52°F
Warmest
2012
69°F avg
Coldest
2014
44°F avg
About This Date
March 18th in Charleston, SC typically brings mild spring weather, with average highs around 65°F and lows near 52°F. Over 56 years of records, the warmest March 18th was in 2012 (69°F average), while the coldest was 2014 (44°F) — a 25°F range across recorded history. Rain or other precipitation has occurred on about 32% of March 18th dates historically, with the wettest March 18th recording 5.49" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.
Planning for March 18th in Charleston, SC? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Warming Trend
1.0°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 55° | 39° | 47° | — | — |
| 2025 | 66° | 48° | 57° | — | — |
| 2024 | 72° | 55° | 63° | — | — |
| 2023 | 68° | 50° | 59° | 0.97" | — |
| 2022 | 70° | 59° | 64° | 0.25" | — |
| 2021 | 71° | 61° | 66° | 5.49" | — |
| 2020 | 68° | 60° | 64° | — | — |
| 2019 | 64° | 49° | 56° | — | — |
| 2018 | 73° | 58° | 65° | — | — |
| 2017 | 68° | 56° | 62° | — | — |
| 2016 | 69° | 63° | 66° | 0.28" | — |
| 2015 | 72° | 55° | 63° | — | — |
| 2014coldest | 48° | 39° | 44° | 0.13" | — |
| 2013 | 66° | 57° | 62° | 1.32" | — |
| 2012warmest | 76° | 63° | 69° | 0.81" | — |
| 2011 | 81° | 56° | 68° | — | — |
| 2010 | 61° | 46° | 53° | 0.03" | — |
| 2009 | 60° | 51° | 56° | — | — |
| 2008 | 67° | 56° | 61° | — | — |
| 2007 | 54° | 43° | 48° | — | — |
| 2006 | 62° | 51° | 57° | — | — |
| 2005 | 55° | 40° | 47° | — | — |
| 2004 | 68° | 53° | 61° | — | — |
| 2003 | 65° | 59° | 62° | 0.05" | — |
| 2002 | 65° | 61° | 63° | — | — |
| 2001 | 62° | 51° | 57° | — | — |
| 2000 | 59° | 47° | 53° | — | — |
| 1999 | 76° | 57° | 66° | — | — |
| 1998 | 64° | 51° | 58° | 0.91" | — |
| 1997 | 71° | 57° | 64° | — | — |
| 1996 | 61° | 55° | 58° | 1.68" | — |
| 1995 | 64° | 55° | 60° | — | — |
| 1994 | 70° | 54° | 62° | — | — |
| 1993 | 56° | 41° | 48° | — | — |
| 1992 | 68° | 57° | 63° | — | — |
| 1991 | 73° | 60° | 67° | 0.08" | — |
| 1990 | 69° | 55° | 62° | — | — |
| 1989 | 78° | 55° | 67° | — | — |
| 1988 | 59° | 45° | 52° | 1.68" | — |
| 1987 | 56° | 49° | 52° | 0.08" | — |
| 1986 | 66° | 58° | 62° | — | — |
| 1985 | 55° | 43° | 49° | — | — |
| 1984 | 62° | 57° | 60° | — | — |
| 1983 | 65° | 55° | 60° | 0.53" | — |
| 1982 | 62° | 58° | 60° | — | — |
| 1981 | 62° | 50° | 56° | 1.07" | — |
| 1980 | 73° | 53° | 63° | 0.36" | — |
| 1979 | 72° | 44° | 58° | — | — |
| 1978 | 54° | 38° | 46° | — | — |
| 1977 | 74° | 57° | 65° | — | — |
| 1976 | 63° | 41° | 52° | — | — |
| 1975 | 61° | 46° | 53° | 1.45" | — |
| 1974 | 64° | 41° | 53° | — | — |
| 1973 | 63° | 43° | 53° | — | — |
| 1972 | 64° | 46° | 55° | — | — |
| 1971 | 55° | 40° | 47° | — | — |
56 years of data from DWTN CHARLESTON