Charleston, South Carolina, United States Climate

Weather: 17.93°C/64.27°F, Wind SW at 3.09 km/h, 87% Humidity, 0% Chance of rain

United States
(Photo by vicky lorenzana on Unsplash)
Contents

Charleston Climate Summary

Located at an elevation of 3.97 meters (13.02 feet) above sea level, Charleston has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 21.18ºC (70.12ºF) and it is 8.54% higher than United States’s averages. Charleston typically receives about 51.23 millimeters (2.02 inches) of precipitation and has 49.16 rainy days (13.47% of the time) annually.

CountryUnited States
CitySouth Carolina
Longitude-79.9310512
Latitude32.7764749
Attitude/Elevation3.97m (13.02ft)
Local timeSunday 06:47
Annual high temperature23.47ºC (74.25ºF)
Annual low temperature17.68ºC (63.82ºF)
Average annual precip.51.23mm (2.02in)
Warmest monthJuly (31.7ºC / 89.06ºF)
Coldest MonthJanuary (7.7ºC / 45.86ºF)
Wettest MonthAugust (91.13mm / 3.59in)
Driest MonthJanuary (21.98mm / 0.87in)
Number of days with rainfall (≥ 1.0 mm)49.16 days (13.47%)
Days with no rain315.84000000000003 days (86.53%)
Humidity71.42%

Climate Charleston: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)23.0(73.4)24.0(75.2)27.0(80.6)30.0(86.0)35.0(95.0)34.0(93.2)35.0(95.0)35.0(95.0)35.0(95.0)33.0(91.4)27.0(80.6)23.0(73.4)35.0(95.0)
Average high °C (°F)13.44(56.19)17.4(63.32)18.46(65.23)22.04(71.67)27.14(80.85)30.22(86.4)31.7(89.06)31.27(88.29)29.28(84.7)25.51(77.92)19.12(66.42)16.11(61.0)23.47(74.25)
Daily mean °C (°F)11.18(52.12)14.99(58.98)15.94(60.69)19.68(67.42)24.89(76.8)27.94(82.29)29.45(85.01)28.88(83.98)27.14(80.85)23.35(74.03)16.81(62.26)13.9(57.02)21.18(70.12)
Average low °C (°F)7.7(45.86)11.29(52.32)12.34(54.21)15.56(60.01)21.04(69.87)24.12(75.42)25.95(78.71)25.77(78.39)24.26(75.67)20.22(68.4)13.16(55.69)10.7(51.26)17.68(63.82)
Record low °C (°F)-4.0(24.8)1.0(33.8)3.0(37.4)7.0(44.6)12.0(53.6)18.0(64.4)22.0(71.6)21.0(69.8)14.0(57.2)12.0(53.6)0.0(0)0.0(0)-4.0(24.8)
Average precipitation mm (inches)21.98(0.87)28.55(1.12)27.95(1.1)39.22(1.54)43.71(1.72)69.8(2.75)78.91(3.11)91.13(3.59)81.18(3.2)33.76(1.33)38.62(1.52)59.94(2.36)51.23(2.02)
Average precipitation days (≥ 1.0 mm)2.452.452.362.454.186.186.187.645.363.553.273.094.1
Average relative humidity (%)68.3976.3467.7768.4171.1171.370.5273.8273.9272.3371.2871.8371.42
Mean monthly sunshine hours8.888.9210.0610.5610.8810.8211.1110.6110.2210.139.098.7410.0

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Charleston in recent years.

Charleston

Charleston Temperature by Month

July
29.45°C | 85.01°F
August
28.88°C | 83.98°F
June
27.94°C | 82.29°F
September
27.14°C | 80.85°F
May
24.89°C | 76.8°F
October
23.35°C | 74.03°F
April
19.68°C | 67.42°F
November
16.81°C | 62.26°F
March
15.94°C | 60.69°F
February
14.99°C | 58.98°F
December
13.9°C | 57.02°F
January
11.18°C | 52.12°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature34.0°C (93.2°F)31.58°C (88.84°F)29.0°C (84.2°F)
Avg Temperature31.0°C (87.8°F)29.29°C (84.72°F)27.0°C (80.6°F)
Min Temperature27.0°C (80.6°F)26.13°C (79.03°F)24.0°C (75.2°F)
Dew PointMaxAverageMin
Dew Point24.0°C (75.2°F)22.58°C (72.64°F)20.0°C (68.0°F)
PrecipitationMaxAverageMinSum
Precipitation25.5mm | 1.0in9.9mm | 0.39in0.1mm | 0.0in307.0mm | 12.09in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind21.0kmh | 13.05mph13.32kmh | 8.28mph7.0kmh | 4.35mph
Gust Wind27.0kmh | 16.78mph18.97kmh | 11.79mph9.0kmh | 5.59mph
Sea Level PressureMaxAverageMin
Sea Level Pressure25.5mb9.9mb0.1mb
Charleston

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
August° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2018-08-0129 | 84.223 | 73.47617 | 10.5630.09 | 101916.3 | 0.64
2018-08-0229 | 84.223 | 73.47618 | 11.1830.09 | 101917.7 | 0.7
2018-08-0328 | 82.423 | 73.47515 | 9.3230.12 | 102025.5 | 1.0
2018-08-0429 | 84.223 | 73.47310 | 6.2130.15 | 102124.6 | 0.97
2018-08-0530 | 86.023 | 73.4728 | 4.9730.18 | 102219.9 | 0.78
2018-08-0630 | 86.023 | 73.4729 | 5.5930.12 | 10205.1 | 0.2
2018-08-0730 | 86.023 | 73.47112 | 7.4630.06 | 10186.7 | 0.26
2018-08-0831 | 87.824 | 75.27016 | 9.9430.03 | 10174.2 | 0.17
2018-08-0930 | 86.023 | 73.47012 | 7.4629.97 | 101517.6 | 0.69
2018-08-1030 | 86.022 | 71.66813 | 8.0829.91 | 10137.6 | 0.3
2018-08-1130 | 86.023 | 73.47213 | 8.0829.91 | 101311.4 | 0.45
2018-08-1230 | 86.023 | 73.47013 | 8.0829.97 | 101513.9 | 0.55
2018-08-1330 | 86.023 | 73.47416 | 9.9429.97 | 10158.7 | 0.34
2018-08-1430 | 86.023 | 73.47115 | 9.3230.0 | 10167.2 | 0.28
2018-08-1529 | 84.223 | 73.47413 | 8.0830.03 | 101723.6 | 0.93
2018-08-1629 | 84.223 | 73.47213 | 8.0830.12 | 102018.5 | 0.73
2018-08-1730 | 86.023 | 73.47415 | 9.3230.15 | 102115.1 | 0.59
2018-08-1829 | 84.223 | 73.47318 | 11.1830.03 | 10174.5 | 0.18
2018-08-1929 | 84.223 | 73.47417 | 10.5629.97 | 10157.8 | 0.31
2018-08-2029 | 84.223 | 73.47315 | 9.3230.03 | 10173.8 | 0.15
2018-08-2130 | 86.023 | 73.47316 | 9.9430.03 | 10176.5 | 0.26
2018-08-2229 | 84.223 | 73.47217 | 10.5629.94 | 10147.4 | 0.29
2018-08-2328 | 82.420 | 68.06716 | 9.9429.97 | 10151.1 | 0.04
2018-08-2427 | 80.620 | 68.07021 | 13.0530.06 | 10180.8 | 0.03
2018-08-2528 | 82.422 | 71.67517 | 10.5630.12 | 10209.6 | 0.38
2018-08-2628 | 82.422 | 71.67510 | 6.2130.15 | 102111.4 | 0.45
2018-08-2729 | 84.222 | 71.6717 | 4.3530.12 | 10202.9 | 0.11
2018-08-2829 | 84.222 | 71.6727 | 4.3530.12 | 10206.7 | 0.26
2018-08-2929 | 84.222 | 71.6719 | 5.5930.12 | 10200.3 | 0.01
2018-08-3030 | 86.022 | 71.6708 | 4.9730.09 | 10190.5 | 0.02
2018-08-3130 | 86.022 | 71.6707 | 4.3530.09 | 10190.1 | 0.0

Charleston 3 Year Historical Weather Data

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