Average temperature over 48 years |
°F |
68 |
51 |
53 |
60 |
68 |
75 |
80 |
82 |
82 |
78 |
69 |
59 |
53 |
Average high temperature over 48 years |
°F |
78 |
60 |
64 |
71 |
78 |
84 |
89 |
91 |
91 |
87 |
80 |
69 |
64 |
Average low temperature over 48 years |
°F |
57 |
41 |
44 |
50 |
57 |
64 |
69 |
73 |
71 |
68 |
57 |
48 |
43 |
Highest recorded temperature over 48 years |
°F |
102 |
82 |
84 |
91 |
91 |
98 |
102 |
100 |
102 |
98 |
93 |
87 |
84 |
Lowest recorded temperature over 48 years |
°F |
8 |
8 |
12 |
19 |
32 |
44 |
53 |
57 |
59 |
43 |
30 |
21 |
8 |
Average number of rainy days over 42 years |
days |
110 |
10 |
9 |
9 |
7 |
8 |
10 |
13 |
12 |
9 |
5 |
8 |
10 |
Average number of days above 90°F over 48 years |
days |
86 |
- |
- |
- |
- |
6 |
20 |
24 |
22 |
12 |
2 |
- |
- |
Average precipitation over 48 years |
in |
58.5 |
4.9 |
5.1 |
4.8 |
5.5 |
5.0 |
4.4 |
6.6 |
5.4 |
4.1 |
3.1 |
4.2 |
5.3 |
Average dew point over 48 years |
°F |
57 |
42 |
44 |
48 |
57 |
64 |
69 |
71 |
71 |
68 |
57 |
48 |
44 |
Average number of days above 70°F over 48 years |
days |
275 |
9 |
11 |
20 |
27 |
31 |
30 |
31 |
31 |
30 |
29 |
17 |
10 |
Most recorded rainfall over 48 years |
in |
88.3 |
11.4 |
14.5 |
12.7 |
14.8 |
14.7 |
23.2 |
11.6 |
14.5 |
13.9 |
14.5 |
13.5 |
15.9 |
Least recorded rainfall over 48 years |
in |
38.3 |
1.1 |
0.7 |
0.5 |
0.4 |
0.6 |
0.1 |
2.0 |
1.0 |
0.1 |
- |
0.1 |
1.9 |
Average number of days with thunderstorms over 48 years |
days |
73 |
2 |
3 |
4 |
5 |
7 |
10 |
15 |
13 |
7 |
2 |
3 |
2 |
Average number of days with fog over 48 years |
days |
202 |
17 |
14 |
16 |
17 |
19 |
17 |
16 |
18 |
18 |
17 |
16 |
17 |
Average morning relative humidity over 48 years |
% |
89 |
85 |
85 |
86 |
89 |
91 |
91 |
92 |
93 |
91 |
89 |
88 |
86 |
Average evening relative humidity over 48 years |
% |
56 |
59 |
55 |
52 |
52 |
54 |
57 |
62 |
61 |
59 |
51 |
53 |
57 |
Average wind speed over 47 years |
mph |
9.0 |
10.0 |
10.0 |
11.0 |
10.0 |
9.0 |
8.0 |
6.0 |
6.0 |
6.0 |
6.0 |
9.0 |
10.0 |
Average number of days below 32°F over 48 years |
days |
21 |
8 |
4 |
1 |
- |
- |
- |
- |
- |
- |
- |
2 |
6 |
Average number of clear days over 42 years |
days |
99 |
7 |
7 |
8 |
8 |
8 |
7 |
5 |
7 |
9 |
15 |
9 |
8 |
Heating degree days over 30 years |
days |
1669 |
490 |
345 |
170 |
27 |
- |
- |
- |
- |
- |
48 |
197 |
392 |
Cooling degree days over 30 years |
days |
2690 |
19 |
12 |
55 |
144 |
319 |
465 |
536 |
524 |
393 |
159 |
47 |
17 |
Average number of cloudy days over 42 years |
days |
147 |
18 |
15 |
15 |
13 |
12 |
9 |
11 |
9 |
10 |
8 |
13 |
16 |
Average number of partly cloudy days over 42 years |
days |
119 |
6 |
6 |
8 |
9 |
11 |
14 |
15 |
15 |
11 |
8 |
8 |
7 |