Weather on January 21
Charleston, SC
55 Years of Data
About This Date
January 21st in Charleston, SC typically brings cool winter weather, with average highs around 55°F and lows near 42°F. Over 56 years of records, the warmest January 21st was in 1974 (67°F average), while the coldest was 1985 (19°F) — a 48°F range across recorded history. Rain or other precipitation has occurred on about 27% of January 21st dates historically, with the wettest January 21st recording 2.07" 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 January 21st in Charleston, SC? Bring layers as temperatures can vary throughout the day.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 57° | 41° | 49° | — | — |
| 2025 | 38° | 27° | 32° | 0.24" | — |
| 2024 | 43° | 26° | 35° | — | — |
| 2023 | 55° | 48° | 52° | — | — |
| 2022 | 52° | 34° | 43° | 0.19" | — |
| 2021 | 61° | 49° | 55° | — | — |
| 2020 | 41° | 33° | 37° | — | — |
| 2019 | 43° | 35° | 39° | — | — |
| 2018 | 59° | 45° | 52° | — | — |
| 2017 | 65° | 60° | 62° | 0.61" | — |
| 2016 | 54° | 44° | 49° | — | — |
| 2015 | 71° | 48° | 60° | — | — |
| 2014 | 62° | 44° | 53° | — | — |
| 2013 | 65° | 47° | 56° | — | — |
| 2012 | 64° | 57° | 61° | 0.28" | — |
| 2011 | 52° | 42° | 47° | — | — |
| 2010 | 56° | 48° | 52° | 0.86" | — |
| 2009 | 43° | 29° | 36° | — | — |
| 2008 | 46° | 32° | 39° | — | — |
| 2007 | 65° | 46° | 55° | — | — |
| 2006 | 72° | 52° | 62° | — | — |
| 2005 | 60° | 43° | 51° | — | — |
| 2004 | 48° | 38° | 43° | — | — |
| 2003 | 66° | 51° | 59° | — | — |
| 2002 | 65° | 46° | 55° | — | — |
| 2001 | 47° | 32° | 39° | — | — |
| 2000 | 48° | 33° | 41° | — | — |
| 1999 | 75° | 56° | 65° | — | — |
| 1998 | 52° | 42° | 47° | — | — |
| 1997 | 57° | 45° | 51° | — | — |
| 1996 | 44° | 38° | 41° | — | — |
| 1995 | 58° | 38° | 48° | — | — |
| 1994 | 45° | 29° | 37° | — | — |
| 1993 | 63° | 52° | 57° | 0.53" | — |
| 1992 | 58° | 40° | 49° | — | — |
| 1991 | 58° | 42° | 50° | — | — |
| 1990 | 64° | 55° | 60° | 0.06" | — |
| 1989 | 51° | 41° | 46° | — | — |
| 1988 | 60° | 52° | 56° | 0.09" | — |
| 1987 | 52° | 45° | 48° | 0.53" | — |
| 1986 | 57° | 41° | 49° | — | — |
| 1985coldest | 28° | 10° | 19° | — | — |
| 1984 | 42° | 31° | 36° | — | — |
| 1983 | 48° | 34° | 41° | 2.07" | — |
| 1982 | 68° | 48° | 58° | 0.01" | — |
| 1981 | 54° | 42° | 48° | 0.29" | — |
| 1980 | 59° | 47° | 53° | — | — |
| 1979 | 63° | 41° | 52° | 0.59" | — |
| 1978 | 48° | 32° | 40° | — | — |
| 1977 | 44° | 28° | 36° | — | — |
| 1976 | 57° | 40° | 48° | — | — |
| 1975 | 45° | 38° | 41° | — | — |
| 1974warmest | 75° | 59° | 67° | 0.13" | — |
| 1973 | 62° | 48° | 55° | — | — |
| 1972 | 61° | 56° | 58° | 0.01" | — |
| 1971 | 50° | 30° | 40° | — | — |
Charleston, SC Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Charleston, SC Monthly Precipitation
Average rainfall and snowfall per month, in inches.
Charleston, SC Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit Charleston, SC
Most pleasant months in Charleston, SC: March, April, May, October, November.