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 (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	5	7	14	19	24	28	30	29	26	20	14	8
Min temperature (night-time)	-5	-4	1	5	10	15	18	17	13	7	2	-3
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 (mm)	79	76	97	86	97	86	123	102	87	70	80	82

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 5°C 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 79 mm of rainfall in the month, which might fall as snow.

5
5°C max day temperature
4
4 hours of sunshine per day
15
15 days with some rainfall
-5
-5°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
79
79 mm of monthly rainfall
2
2 (Low) UV index

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Charleston weather in February

Expect daytime maximum temperatures of 7°C 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 76 mm of rainfall in the month.

7
7°C max day temperature
5
5 hours of sunshine per day
14
14 days with some rainfall
-4
-4°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
76
76 mm of monthly rainfall
3
3 (Moderate) UV index

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Charleston weather in March

Expect daytime maximum temperatures of 14°C 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 97 mm of rainfall in the month.

14
14°C max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
1
1°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
97
97 mm of monthly rainfall
5
5 (Moderate) UV index

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Charleston weather in April

Expect daytime maximum temperatures of 19°C 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 86 mm of rainfall in the month.

19
19°C max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
5
5°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
86
86 mm of monthly rainfall
7
7 (High) UV index

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Charleston weather in May

Expect daytime maximum temperatures of 24°C 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 97 mm of rainfall in the month.

24
24°C max day temperature
8
8 hours of sunshine per day
13
13 days with some rainfall
10
10°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
97
97 mm of monthly rainfall
8
8 (Very High) UV index

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Charleston weather in June

Expect daytime maximum temperatures of 28°C 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 86 mm of rainfall in the month.

28
28°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
15
15°C min night temperature
15
15 hours of daylight per day
M
Moderate heat & humidity
86
86 mm of monthly rainfall
9
9 (Very High) UV index

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Charleston weather in July

Expect daytime maximum temperatures of 30°C 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 123 mm of rainfall in the month.

30
30°C max day temperature
8
8 hours of sunshine per day
13
13 days with some rainfall
18
18°C min night temperature
15
15 hours of daylight per day
H
High heat & humidity
123
123 mm of monthly rainfall
9
9 (Very High) UV index

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Charleston weather in August

Expect daytime maximum temperatures of 29°C 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 102 mm of rainfall in the month.

29
29°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
17
17°C min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
102
102 mm of monthly rainfall
9
9 (Very High) UV index

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Charleston weather in September

Expect daytime maximum temperatures of 26°C 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 87 mm of rainfall in the month.

26
26°C max day temperature
7
7 hours of sunshine per day
10
10 days with some rainfall
13
13°C min night temperature
12
12 hours of daylight per day
L
Low heat & humidity
87
87 mm of monthly rainfall
7
7 (High) UV index

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Charleston weather in October

Expect daytime maximum temperatures of 20°C 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 70 mm of rainfall in the month.

20
20°C max day temperature
6
6 hours of sunshine per day
10
10 days with some rainfall
7
7°C min night temperature
11
11 hours of daylight per day
0
No heat & humidity
70
70 mm of monthly rainfall
5
5 (Moderate) UV index

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Charleston weather in November

Expect daytime maximum temperatures of 14°C 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 80 mm of rainfall in the month.

14
14°C max day temperature
4
4 hours of sunshine per day
12
12 days with some rainfall
2
2°C min night temperature
10
10 hours of daylight per day
0
No heat & humidity
80
80 mm of monthly rainfall
3
3 (Moderate) UV index

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Charleston weather in December

Expect daytime maximum temperatures of 8°C 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 82 mm of rainfall in the month.