Weather on March 21
Charleston, SC
55 Years of Data
Avg High
67°F
Avg Low
53°F
Warmest
1982
74°F avg
Coldest
1996
45°F avg
About This Date
March 21st in Charleston, SC typically brings mild spring weather, with average highs around 67°F and lows near 53°F. Over 56 years of records, the warmest March 21st was in 1982 (74°F average), while the coldest was 1996 (45°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 21% of March 21st dates historically, with the wettest March 21st recording 1.3" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for March 21st in Charleston, SC? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 85° | 57° | 71° | — | — |
| 2025 | 65° | 45° | 55° | — | — |
| 2024 | 69° | 55° | 62° | — | — |
| 2023 | 59° | 46° | 53° | — | — |
| 2022 | 64° | 54° | 59° | — | — |
| 2021 | 66° | 50° | 58° | 0.05" | — |
| 2020 | 82° | 67° | 74° | — | — |
| 2019 | 67° | 48° | 57° | — | — |
| 2018 | 61° | 46° | 53° | — | — |
| 2017 | 73° | 56° | 64° | 0.03" | — |
| 2016 | 62° | 46° | 54° | — | — |
| 2015 | 64° | 59° | 62° | — | — |
| 2014 | 65° | 50° | 57° | — | — |
| 2013 | 59° | 44° | 52° | — | — |
| 2012 | 72° | 66° | 69° | — | — |
| 2011 | 71° | 56° | 63° | — | — |
| 2010 | 65° | 57° | 61° | 1.12" | — |
| 2009 | 56° | 48° | 52° | — | — |
| 2008 | 60° | 51° | 56° | — | — |
| 2007 | 69° | 57° | 63° | — | — |
| 2006 | 62° | 51° | 57° | 0.91" | — |
| 2005 | 66° | 55° | 61° | 0.1" | — |
| 2004 | 77° | 51° | 64° | — | — |
| 2003 | 79° | 64° | 71° | — | — |
| 2002 | 70° | 56° | 63° | 1.12" | — |
| 2001 | 56° | 48° | 52° | — | — |
| 2000 | 68° | 53° | 61° | — | — |
| 1999 | 67° | 57° | 62° | 0.76" | — |
| 1998 | 62° | 47° | 54° | — | — |
| 1997 | 66° | 58° | 62° | — | — |
| 1996coldest | 53° | 37° | 45° | — | — |
| 1995 | 79° | 61° | 70° | — | — |
| 1994 | 76° | 61° | 68° | — | — |
| 1993 | 62° | 50° | 56° | — | — |
| 1992 | 57° | 41° | 49° | — | — |
| 1991 | 73° | 59° | 66° | — | — |
| 1990 | 57° | 40° | 48° | — | — |
| 1989 | 74° | 62° | 68° | — | — |
| 1988 | 73° | 54° | 63° | — | — |
| 1987 | 63° | 50° | 56° | — | — |
| 1986 | 50° | 43° | 46° | — | — |
| 1985 | 60° | 55° | 58° | 1.3" | — |
| 1984 | 66° | 47° | 56° | — | — |
| 1983 | 66° | 46° | 56° | — | — |
| 1982warmest | 85° | 63° | 74° | — | — |
| 1981 | 61° | 40° | 50° | — | — |
| 1980 | 73° | 54° | 63° | 0.3" | — |
| 1979 | 64° | 55° | 60° | 0.41" | — |
| 1978 | 73° | 58° | 65° | — | — |
| 1977 | 61° | 54° | 57° | 1.22" | — |
| 1976 | 74° | 62° | 68° | — | — |
| 1975 | 69° | 54° | 61° | — | — |
| 1974 | 75° | 62° | 69° | 0.18" | — |
| 1973 | 73° | 45° | 59° | — | — |
| 1972 | 71° | 60° | 66° | — | — |
| 1971 | 58° | 38° | 48° | — | — |
56 years of data from DWTN CHARLESTON