Charleston weather by month

Check out Charleston weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & UV index

Temperature in Charleston (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	41	45	57	66	75	82	86	84	79	68	57	46
Min temperature (night-time)	23	25	34	41	50	59	64	63	55	45	36	27
Heat & Humidity	0	0	0	0	0	M	H	M	L	0	0	0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Charleston

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	4	5	6	7	8	8	8	8	7	6	4	3
Daily hours of daylight	10	11	12	13	14	15	15	14	12	11	10	10
UV Index (Maximum)	2	3	5	7	8	9	9	9	7	5	3	2

Rainfall in Charleston

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	15	14	14	14	13	11	13	11	10	10	12	14
Average monthly rainfall (inches)	3.1	3.0	3.8	3.4	3.8	3.4	4.8	4.0	3.4	2.8	3.1	3.2

More about Charleston

Charleston by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for West Virginia (Charleston) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Charleston?

Charleston has a temperate climate with hot summers and some rainfall in all months.

Charleston weather in January

Expect daytime maximum temperatures of 41°F in Charleston, West Virginia in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 15 days with some rainfall and typically 3.1 inches of rainfall in the month, which might fall as snow.

41
41°F max day temperature
4
4 hours of sunshine per day
15
15 days with some rainfall
23
23°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
3.1
3.1 inches of monthly rainfall
2
2 (Low) UV index

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Charleston weather in February

Expect daytime maximum temperatures of 45°F in Charleston, West Virginia in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 3.0 inches of rainfall in the month.

45
45°F max day temperature
5
5 hours of sunshine per day
14
14 days with some rainfall
25
25°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
3.0
3.0 inches of monthly rainfall
3
3 (Moderate) UV index

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Charleston weather in March

Expect daytime maximum temperatures of 57°F in Charleston, West Virginia in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 3.8 inches of rainfall in the month.

57
57°F max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
34
34°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.8
3.8 inches of monthly rainfall
5
5 (Moderate) UV index

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Charleston weather in April

Expect daytime maximum temperatures of 66°F in Charleston, West Virginia in April based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 3.4 inches of rainfall in the month.

66
66°F max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
41
41°F min night temperature
13
13 hours of daylight per day
0
No heat & humidity
3.4
3.4 inches of monthly rainfall
7
7 (High) UV index

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Charleston weather in May

Expect daytime maximum temperatures of 75°F in Charleston, West Virginia in May based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 3.8 inches of rainfall in the month.

75
75°F max day temperature
8
8 hours of sunshine per day
13
13 days with some rainfall
50
50°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
3.8
3.8 inches of monthly rainfall
8
8 (Very High) UV index

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Charleston weather in June

Expect daytime maximum temperatures of 82°F in Charleston, West Virginia in June based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 3.4 inches of rainfall in the month.

82
82°F max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
59
59°F min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
3.4
3.4 inches of monthly rainfall
9
9 (Very High) UV index

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Charleston weather in July

Expect daytime maximum temperatures of 86°F in Charleston, West Virginia in July and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 4.8 inches of rainfall in the month.

86
86°F max day temperature
8
8 hours of sunshine per day
13
13 days with some rainfall
64
64°F min night temperature
15
15 hours of daylight per day
H
High heat & humidity
4.8
4.8 inches of monthly rainfall
9
9 (Very High) UV index

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Charleston weather in August

Expect daytime maximum temperatures of 84°F in Charleston, West Virginia in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 4.0 inches of rainfall in the month.

84
84°F max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
63
63°F min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
4.0
4.0 inches of monthly rainfall
9
9 (Very High) UV index

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Charleston weather in September

Expect daytime maximum temperatures of 79°F in Charleston, West Virginia in September based on long-term weather averages. There are 7 hours of sunshine per day on average with 10 days with some rainfall and typically 3.4 inches of rainfall in the month.

79
79°F max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
55
55°F min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
3.4
3.4 inches of monthly rainfall
7
7 (High) UV index

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Charleston weather in October

Expect daytime maximum temperatures of 68°F in Charleston, West Virginia in October based on long-term weather averages. There are 6 hours of sunshine per day on average with 10 days with some rainfall and typically 2.8 inches of rainfall in the month.

68
68°F max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
45
45°F min night temperature
11
11 hours of daylight per day
0
No heat & humidity
2.8
2.8 inches of monthly rainfall
5
5 (Moderate) UV index

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Charleston weather in November

Expect daytime maximum temperatures of 57°F in Charleston, West Virginia in November based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 3.1 inches of rainfall in the month.

57
57°F max day temperature
4
4 hours of sunshine per day
12
12 days with some rainfall
36
36°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
3.1
3.1 inches of monthly rainfall
3
3 (Moderate) UV index

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Charleston weather in December

Expect daytime maximum temperatures of 46°F in Charleston, West Virginia in December based on long-term weather averages. There are 3 hours of sunshine per day on average with 14 days with some rainfall and typically 3.2 inches of rainfall in the month.