Weather on September 30
Charleston, SC
55 Years of Data
About This Date
September 30th in Charleston, SC typically brings pleasant fall weather, with average highs around 79°F and lows near 68°F. Over 56 years of records, the warmest September 30th was in 1998 (82°F average), while the coldest was 2022 (62°F) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 27% of September 30th dates historically, with the wettest September 30th recording 3.96" of rain. The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.
Planning for September 30th in Charleston, SC? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 81° | 74° | 77° | — | — |
| 2025 | 76° | 71° | 73° | — | — |
| 2024 | 84° | 77° | 81° | — | — |
| 2023 | 78° | 67° | 72° | — | — |
| 2022coldest | 65° | 60° | 62° | 3.96" | — |
| 2021 | 86° | 73° | 80° | — | — |
| 2020 | 77° | 60° | 69° | — | — |
| 2019 | 86° | 76° | 81° | — | — |
| 2018 | 82° | 74° | 78° | — | — |
| 2017 | 80° | 72° | 76° | — | — |
| 2016 | 86° | 72° | 79° | 0.99" | — |
| 2015 | 85° | 76° | 80° | 0.26" | — |
| 2014 | 75° | 64° | 70° | 0.65" | — |
| 2013 | 75° | 63° | 69° | — | — |
| 2012 | 79° | 72° | 75° | — | — |
| 2011 | 86° | 70° | 78° | — | — |
| 2010 | 77° | 70° | 73° | — | — |
| 2009 | 78° | 62° | 70° | — | — |
| 2008 | 78° | 72° | 75° | 0.02" | — |
| 2007 | 79° | 65° | 72° | — | — |
| 2006 | 77° | 66° | 72° | — | — |
| 2005 | 80° | 71° | 76° | — | — |
| 2004 | 80° | 75° | 78° | 0.02" | — |
| 2003 | 74° | 60° | 67° | — | — |
| 2002 | 80° | 71° | 76° | — | — |
| 2001 | 73° | 57° | 65° | — | — |
| 2000 | 74° | 65° | 69° | — | — |
| 1999 | 73° | 64° | 69° | 0.01" | — |
| 1998warmest | 86° | 77° | 82° | 0.11" | — |
| 1997 | 89° | 69° | 79° | — | — |
| 1996 | 76° | 66° | 71° | 0.2" | — |
| 1995 | 77° | 68° | 73° | — | — |
| 1994 | 76° | 68° | 72° | — | — |
| 1993 | 71° | 60° | 66° | — | — |
| 1992 | 72° | 62° | 67° | — | — |
| 1991 | 77° | 68° | 73° | — | — |
| 1990 | 78° | 73° | 76° | 0.03" | — |
| 1989 | 80° | 74° | 77° | — | — |
| 1988 | 78° | 69° | 74° | — | — |
| 1987 | 78° | 69° | 74° | 1.05" | — |
| 1986 | 85° | 76° | 80° | — | — |
| 1985 | 78° | 67° | 72° | — | — |
| 1984 | 69° | 57° | 63° | — | — |
| 1983 | 74° | 60° | 67° | — | — |
| 1982 | 78° | 64° | 71° | — | — |
| 1981 | 81° | 70° | 75° | — | — |
| 1980 | 70° | 66° | 68° | 0.66" | — |
| 1979 | 83° | 70° | 76° | 0.29" | — |
| 1978 | 73° | 66° | 70° | 0.25" | — |
| 1977 | 82° | 71° | 77° | — | — |
| 1976 | 80° | 64° | 72° | — | — |
| 1975 | 80° | 66° | 73° | — | — |
| 1974 | 73° | 60° | 67° | — | — |
| 1973 | 88° | 74° | 81° | — | — |
| 1972 | 87° | 67° | 77° | 0.04" | — |
| 1971 | 85° | 67° | 76° | — | — |
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.