Raleigh - Durham Weather History (NC)
Summary
Temp.
(ºF)
Relative Humidity
(Percentage)
Extreme Temp.
(Days Per Month)
Rain
(Inches)
Cloudiness
(Days Per Month)
Average
A.M.
P.M.
Below
32º
Above
90º
Average
Clear
Partly
Cloudy
Cloudy
January
38.9
79%
55%
20
0
3.5
9
7
15
February
42.0
78%
52%
16
0
3.7
9
6
14
March
50.4
80%
49%
9
N/A
3.8
9
7
14
April
59.0
81%
46%
2
0
2.6
10
9
11
May
67.0
85%
54%
N/A
2
3.9
8
10
13
June
74.3
87%
56%
0
8
3.7
8
12
11
July
78.1
89%
58%
0
14
4.0
7
12
12
August
77.1
91%
59%
0
11
4.0
7
12
11
September
71.1
92%
59%
0
3
3.2
10
9
11
October
60.1
90%
53%
1
N/A
2.9
13
7
11
November
51.2
85%
52%
9
0
3.0
11
7
11
December
42.6
81%
55%
17
0
3.2
10
7
14
Annual
59.3
85%
54%
75
37
41.4
111
106
149
Average Temperature (ºF)
Jan.
Feb.
Mar.
Apr.
May.
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
38.9
42.0
50.4
59.0
67.0
74.3
78.1
77.1
71.1
60.1
51.2
42.6
Relative Humidity (Percentage)
Morning
Jan.
Feb.
Mar.
Apr.
May.
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
79%
78%
80%
81%
85%
87%
89%
91%
92%
90%
85%
81%
Afternoon
55%
52%
49%
46%
54%
56%
58%
59%
59%
53%
52%
55%
Rain (Inches)
Jan.
Feb.
Mar.
Apr.
May.
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
3.5
3.7
3.8
2.6
3.9
3.7
4.0
4.0
3.2
2.9
3.0
3.2
Cloudiness (Days Per Month)
January
February
March
Clear
9 Days
9 Days
9 Days
Partly Cloudy
7 Days
6 Days
7 Days
Cloudy
15 Days
14 Days
14 Days
April
May
June
Clear
10 Days
8 Days
8 Days
Partly Cloudy
9 Days
10 Days
12 Days
Cloudy
11 Days
13 Days
11 Days
July
August
September
Clear
7 Days
7 Days
10 Days
Partly Cloudy
12 Days
12 Days
9 Days
Cloudy
12 Days
11 Days
11 Days
October
November
December
Clear
13 Days
11 Days
10 Days
Partly Cloudy
7 Days
7 Days
7 Days
Cloudy
11 Days
11 Days
14 Days
Clear
Partly Cloudy
Cloudy
Days Per Year
111
106
149
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