Charleston weather by month
What a typical year looks like in Charleston, West Virginia: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Charleston - West Virginia International Yeager Airport, 5 km from Charleston; records cover 1892–2026.
The year at a glance
- Precipitation a year
- 46.2 in1174 mm
- Snow a year
- 32 in80 cm
- Last spring freeze
- Apr 16
- First fall freeze
- Oct 19
- Heating degree days
- 4,354
- Cooling degree days
- 1,160
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 8°−13° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Charleston in January
Highs average 44°7° and lows 26°−3°, with 3.3 in83 mm of precipitation and 10 in26 cm of snow in a typical January.
- Record high
- 81°27° (1932)
- Record low
- −16°−27° (1994)
- Heating degree days
- 930
- Cooling degree days
- 0
Charleston in February
Highs average 48°9° and lows 29°−2°, with 3.4 in85 mm of precipitation and 8 in20 cm of snow in a typical February.
- Record high
- 81°27° (2018)
- Record low
- −12°−24° (1996)
- Heating degree days
- 751
- Cooling degree days
- 0
Charleston in March
Highs average 57°14° and lows 35°2°, with 4.1 in105 mm of precipitation and 6 in15 cm of snow in a typical March.
- Record high
- 92°33° (1929)
- Record low
- −5°−21° (1943)
- Heating degree days
- 596
- Cooling degree days
- 5
Charleston in April
Highs average 69°21° and lows 45°7°, with 3.6 in90 mm of precipitation and 0.5 in1.3 cm of snow in a typical April.
- Record high
- 96°36° (1925)
- Record low
- 18°−8° (1923)
- Heating degree days
- 272
- Cooling degree days
- 30
Charleston in May
Highs average 76°25° and lows 53°12°, with 4.9 in125 mm of precipitation in a typical May.
- Record high
- 98°37° (1930)
- Record low
- 26°−3° (1966)
- Heating degree days
- 104
- Cooling degree days
- 94
Charleston in June
Highs average 83°28° and lows 62°16°, with 4.7 in120 mm of precipitation in a typical June.
- Record high
- 105°41° (1931)
- Record low
- 33°1° (1972)
- Heating degree days
- 10
- Cooling degree days
- 229
Charleston in July
Highs average 86°30° and lows 66°19°, with 5.4 in137 mm of precipitation in a typical July.
- Record high
- 108°42° (1931)
- Record low
- 46°8° (1961)
- Heating degree days
- 0
- Cooling degree days
- 333
Charleston in August
Highs average 85°30° and lows 64°18°, with 3.8 in95 mm of precipitation in a typical August.
- Record high
- 108°42° (1918)
- Record low
- 41°5° (1965)
- Heating degree days
- 1
- Cooling degree days
- 300
Charleston in September
Highs average 80°26° and lows 57°14°, with 3.5 in88 mm of precipitation in a typical September.
- Record high
- 104°40° (1932)
- Record low
- 32°0° (1942)
- Heating degree days
- 45
- Cooling degree days
- 144
Charleston in OctoberThis month
Highs average 69°20° and lows 45°7°, with 2.9 in74 mm of precipitation and 0.6 in1.5 cm of snow in a typical October.
- Record high
- 96°36° (1903)
- Record low
- 17°−8° (1962)
- Heating degree days
- 271
- Cooling degree days
- 23
Charleston in November
Highs average 57°14° and lows 36°2°, with 3.2 in81 mm of precipitation and 1.5 in3.8 cm of snow in a typical November.
- Record high
- 87°31° (1931)
- Record low
- 6°−14° (1929)
- Heating degree days
- 558
- Cooling degree days
- 2
Charleston in December
Highs average 48°9° and lows 30°−1°, with 3.6 in90 mm of precipitation and 5 in13 cm of snow in a typical December.
- Record high
- 80°27° (1971)
- Record low
- −17°−27° (1917)
- Heating degree days
- 816
- Cooling degree days
- 0