Humid subtropical

Charleston, South Carolina

Charleston County, South Carolina · Population 152k · 13 ft elevation

Living in Charleston

Charleston has a humid subtropical climate: hot summers (July highs around 88°F) and mild winters (January lows around 44°F).

Precipitation is wet at about 44″ a year, and it essentially never sees snow.

Skies are sunny (69% of possible sunshine). Humidity is a fact of life: about 124 muggy days a year.

Air quality is moderate: a median AQI of 47, with about 1 unhealthy-air day in the latest year.

Charleston at a glance

Population
152k
Elevation
13 ft
Average daily high
73°F70th percentile
Average daily low
61°F92th percentile
Annual precipitation
44″52th percentile
Annual snowfall
0″0th percentile
Sunshine hours per year
3,092 hrs76th percentile
Median AQI
4776th percentile
Median home value
$469k79th percentile
Median rent
$1,632/mo73th percentile
Median household income
$90k66th percentile
Property tax rate
0.46%6th percentile
Top state income-tax rate
6.0%
Sales tax (state + local)
7.5%
Unemployment rate
3.4%
Homes with broadband
91%49th percentile
Walkability index
13.085th percentile
Average commute
24 min
Math proficiency (8th grade)
42%42th percentile
Reading proficiency (8th grade)
50%
Violent crime rate
279 per 100k68th percentile
Property crime rate
1,612 per 100k
Overall natural-hazard risk
9986th percentile
Outdoor access
3029th percentile
Public land within 10 miles
0%
Public land within 30 miles
16%
Mountain relief within 30 miles
66 ft

Climate by month

Average monthly weather in Charleston, South Carolina
MonthHighLowPrecipitationSnowSunshine
Jan58°F44°F2.6″—210 hrs
Feb60°F46°F2.6″—189 hrs
Mar66°F52°F3.0″—242 hrs
Apr72°F60°F3.0″—284 hrs
May79°F68°F2.6″—309 hrs
Jun84°F74°F4.8″—314 hrs
Jul88°F77°F5.1″—324 hrs
Aug86°F77°F6.1″—289 hrs
Sep83°F73°F5.3″—253 hrs
Oct76°F63°F4.1″—248 hrs
Nov67°F53°F2.3″—223 hrs
Dec61°F47°F2.9″—206 hrs

Near Charleston

Largest places in South Carolina

Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology