Historical Weather Records & Monthly Climate for Charleston, SC

All-Time High
105°F
All-Time Low
6°F
Max Daily Snow
6"
Max Daily Rain
11.5"
Max Snow Depth
8"

Monthly Climate Averages for Charleston, SC

Based on 30 years of historical data (1994 - 2023)

MonthHigh (°F)Low (°F)Precip (in)Snow (in)
January58°44°2.89"0.22"
February61°47°3.27"0.06"
March66°52°3.15"0
April73°59°3.15"0
May79°67°2.63"0
June84°74°5.04"0
July87°77°5.31"0
August85°76°6.26"0
September82°72°5.15"0
October75°63°3.82"0
November66°53°2.54"0
December61°48°3.62"0

Historical Weather Extremes for Charleston, SC

Based on 80+ years of archive data (1940 - 2024)

🔥
Longest Heatwave
14 Days
1986
Consecutive days ≥ 90°F
🧊
Deepest Freeze
2 Days
1970
Consecutive days ≤ 32°F
🏜️
Longest Drought
35 Days
2000
Consecutive days w/o rain
Wettest Month
27.24"
June 1973
Most rainfall in one month
Snowiest Month
8"
December 1989
Most snowfall in one month

More Historical Climate Data for Cities in


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