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The tables below display average monthly climate and weather indicators in Charleston West Virginia.
Temperature by: Fahrenheit / Centigrade
| Charleston Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature |
32.1 |
35.5 |
45.9 |
54.8 |
63.5 |
71.4 |
75.1 |
73.9 |
67.7 |
56.2 |
46.8 |
37.0 |
55.0 |
| Avg. Max Temperature |
41.2 |
45.3 |
56.7 |
66.8 |
75.5 |
83.1 |
85.7 |
84.4 |
78.8 |
68.2 |
57.3 |
46.0 |
65.8 |
| Avg. Min Temperature |
23.0 |
25.7 |
35.0 |
42.8 |
51.5 |
59.8 |
64.4 |
63.4 |
56.5 |
44.2 |
36.3 |
28.0 |
44.2 |
| Days with Max Temp of 90 F or Higher |
0.0 |
0.0 |
0.0 |
< 0.5 |
1.0 |
5.0 |
8.0 |
5.0 |
2.0 |
< 0.5 |
0.0 |
0.0 |
21.0 |
| Days with Min Temp Below Freezing |
23.0 |
20.0 |
15.0 |
5.0 |
< 0.5 |
0.0 |
0.0 |
0.0 |
0.0 |
3.0 |
13.0 |
21.0 |
99.0 |
| | |
| Charleston Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days |
1020 |
826 |
592 |
312 |
129 |
10.0 |
0.0 |
0.0 |
44.0 |
299 |
546 |
868 |
4646 |
| Cooling Degree Days |
0.0 |
0.0 |
0.0 |
6.0 |
83.0 |
202 |
313 |
276 |
125 |
26.0 |
0.0 |
0.0 |
1031 |
| | |
| Charleston Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) |
2.9 |
3.0 |
3.6 |
3.3 |
3.9 |
3.6 |
5.0 |
4.0 |
3.2 |
2.9 |
3.6 |
3.4 |
42.5 |
| Days with Precipitation 0.01 inch or More |
15.0 |
14.0 |
15.0 |
14.0 |
13.0 |
12.0 |
13.0 |
11.0 |
9.0 |
9.0 |
12.0 |
14.0 |
152 |
| Monthly Snowfall (inches) |
11.1 |
8.7 |
5.4 |
0.9 |
0.0 |
< 0.05 |
< 0.05 |
< 0.05 |
< 0.05 |
0.2 |
2.4 |
5.3 |
34.0 |
| | |
| Other Charleston Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed |
7.1 |
7.0 |
7.8 |
7.2 |
5.8 |
5.2 |
4.8 |
4.3 |
4.6 |
4.8 |
6.2 |
6.5 |
5.9 |
| Clear Days |
4.0 |
4.0 |
5.0 |
6.0 |
6.0 |
5.0 |
5.0 |
5.0 |
7.0 |
9.0 |
5.0 |
5.0 |
65.0 |
| Partly Cloudy Days |
6.0 |
6.0 |
8.0 |
8.0 |
10.0 |
13.0 |
13.0 |
14.0 |
11.0 |
9.0 |
7.0 |
6.0 |
111 |
| Cloudy Days |
21.0 |
18.0 |
19.0 |
16.0 |
15.0 |
12.0 |
13.0 |
12.0 |
12.0 |
13.0 |
18.0 |
20.0 |
189 |
| Avg. Relative Humidity |
64.5 |
70.0 |
67.0 |
64.5 |
65.5 |
69.5 |
72.5 |
76.0 |
75.0 |
72.5 |
67.5 |
67.5 |
73.0 |
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