Weather on May 12
Charleston, SC
55 Years of Data
About This Date
May 12th in Charleston, SC typically brings pleasant spring weather, with average highs around 79°F and lows near 66°F. Over 56 years of records, the warmest May 12th was in 2000 (82°F average), while the coldest was 1989 (61°F) — a 21°F range across recorded history. Rain or other precipitation has occurred on about 16% of May 12th dates historically, with the wettest May 12th recording 3.4" of rain. The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
The last decade has been 3.8°F cooler on this date compared to 20-30 years ago.
Planning for May 12th in Charleston, SC? Great weather for outdoor activities.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 69° | 61° | 65° | — | — |
| 2025 | 76° | 71° | 73° | 0.43" | — |
| 2024 | 79° | 65° | 72° | — | — |
| 2023 | 76° | 71° | 73° | — | — |
| 2022 | 72° | 65° | 68° | — | — |
| 2021 | 74° | 53° | 63° | 2.51" | — |
| 2020 | 67° | 55° | 61° | — | — |
| 2019 | 82° | 70° | 76° | 0.46" | — |
| 2018 | 83° | 71° | 77° | — | — |
| 2017 | 81° | 73° | 77° | — | — |
| 2016 | 83° | 71° | 77° | — | — |
| 2015 | 82° | 73° | 78° | — | — |
| 2014 | 82° | 73° | 78° | — | — |
| 2013 | 83° | 68° | 75° | 0.03" | — |
| 2012 | 75° | 72° | 73° | — | — |
| 2011 | 77° | 71° | 74° | — | — |
| 2010 | 78° | 70° | 74° | — | — |
| 2009 | 70° | 57° | 63° | — | — |
| 2008 | 77° | 61° | 69° | — | — |
| 2007 | 79° | 69° | 74° | — | — |
| 2006 | 76° | 59° | 67° | — | — |
| 2005 | 79° | 69° | 74° | — | — |
| 2004 | 78° | 73° | 76° | — | — |
| 2003 | 85° | 68° | 76° | — | — |
| 2002 | 79° | 73° | 76° | — | — |
| 2001 | 87° | 67° | 77° | 0.05" | — |
| 2000warmest | 93° | 71° | 82° | — | — |
| 1999 | 73° | 67° | 70° | 1.47" | — |
| 1998 | 83° | 69° | 76° | — | — |
| 1997 | 73° | 63° | 68° | 1.02" | — |
| 1996 | 81° | 67° | 74° | — | — |
| 1995 | 88° | 73° | 80° | — | — |
| 1994 | 87° | 69° | 78° | — | — |
| 1993 | 79° | 67° | 73° | — | — |
| 1992 | 76° | 62° | 69° | — | — |
| 1991 | 79° | 74° | 76° | — | — |
| 1990 | 73° | 66° | 70° | — | — |
| 1989coldest | 69° | 54° | 61° | — | — |
| 1988 | 75° | 64° | 70° | — | — |
| 1987 | 75° | 67° | 71° | — | — |
| 1986 | 83° | 66° | 74° | 1.45" | — |
| 1985 | 80° | 68° | 74° | — | — |
| 1984 | 83° | 64° | 73° | — | — |
| 1983 | 82° | 64° | 73° | — | — |
| 1982 | 78° | 66° | 72° | — | — |
| 1981 | 75° | 54° | 64° | — | — |
| 1980 | 83° | 68° | 75° | — | — |
| 1979 | 80° | 65° | 72° | — | — |
| 1978 | 79° | 68° | 73° | — | — |
| 1977 | 78° | 58° | 68° | — | — |
| 1976 | 86° | 64° | 75° | — | — |
| 1975 | 81° | 63° | 72° | — | — |
| 1974 | 80° | 66° | 73° | 3.4" | — |
| 1973 | 88° | 68° | 78° | — | — |
| 1972 | 74° | 62° | 68° | — | — |
| 1971 | 79° | 70° | 74° | — | — |
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
Charleston, SC has no months that meet our "pleasant" threshold — every season has tradeoffs.