Weather on April 21
Charleston, SC
55 Years of Data
Avg High
75°F
Avg Low
61°F
Warmest
2002
82°F avg
Coldest
1983
55°F avg
About This Date
April 21st in Charleston, SC typically brings pleasant spring weather, with average highs around 75°F and lows near 61°F. Over 55 years of records, the warmest April 21st was in 2002 (82°F average), while the coldest was 1983 (55°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 15% of April 21st dates historically, with the wettest April 21st recording 2.49" of rain. The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.3°F cooler on this date compared to 20-30 years ago.
Planning for April 21st in Charleston, SC? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 76° | 68° | 72° | — | — |
| 2024 | 75° | 56° | 65° | 1.02" | — |
| 2023 | 74° | 66° | 70° | — | — |
| 2022 | 72° | 60° | 66° | — | — |
| 2021 | 82° | 62° | 72° | — | — |
| 2020 | 76° | 60° | 68° | — | — |
| 2019 | 68° | 53° | 61° | — | — |
| 2018 | 65° | 56° | 60° | — | — |
| 2017 | 78° | 68° | 73° | — | — |
| 2016 | 76° | 62° | 69° | — | — |
| 2015 | 78° | 63° | 70° | — | — |
| 2014 | 76° | 55° | 65° | — | — |
| 2013 | 65° | 53° | 59° | — | — |
| 2012 | 75° | 69° | 72° | — | — |
| 2011 | 85° | 67° | 76° | 2.49" | — |
| 2010 | 77° | 61° | 69° | 0.05" | — |
| 2009 | 74° | 59° | 66° | — | — |
| 2008 | 75° | 59° | 67° | — | — |
| 2007 | 71° | 53° | 62° | — | — |
| 2006 | 75° | 64° | 70° | — | — |
| 2005 | 77° | 61° | 69° | — | — |
| 2004 | 74° | 66° | 70° | — | — |
| 2003 | 74° | 64° | 69° | — | — |
| 2002warmest | 91° | 73° | 82° | — | — |
| 2001 | 78° | 64° | 71° | — | — |
| 2000 | 75° | 62° | 69° | — | — |
| 1999 | 78° | 64° | 71° | — | — |
| 1998 | 69° | 62° | 66° | — | — |
| 1997 | 75° | 64° | 70° | — | — |
| 1996 | 77° | 67° | 72° | — | — |
| 1995 | 80° | 72° | 76° | — | — |
| 1994 | 80° | 68° | 74° | — | — |
| 1993 | 71° | 55° | 63° | — | — |
| 1992 | 72° | 68° | 70° | 2.36" | — |
| 1991 | 67° | 57° | 62° | 0.71" | — |
| 1990 | 73° | 61° | 67° | — | — |
| 1989 | 72° | 53° | 62° | — | — |
| 1988 | 81° | 60° | 70° | — | — |
| 1987 | 78° | 61° | 69° | — | — |
| 1986 | 76° | 63° | 69° | 0.2" | — |
| 1985 | 85° | 60° | 72° | — | — |
| 1984 | 78° | 60° | 69° | — | — |
| 1983coldest | 66° | 44° | 55° | — | — |
| 1982 | 78° | 64° | 71° | — | — |
| 1981 | 62° | 53° | 58° | 0.66" | — |
| 1980 | 82° | 56° | 69° | — | — |
| 1979 | 76° | 57° | 66° | — | — |
| 1978 | 70° | 50° | 60° | — | — |
| 1977 | 80° | 69° | 75° | — | — |
| 1976 | 84° | 66° | 75° | — | — |
| 1975 | 68° | 57° | 63° | — | — |
| 1974 | 74° | 57° | 65° | — | — |
| 1973 | 75° | 62° | 69° | — | — |
| 1972 | 75° | 58° | 66° | — | — |
| 1971 | 87° | 64° | 76° | 0.71" | — |
55 years of data from DWTN CHARLESTON