Average temperature over 32 years |
°F |
64 |
44 |
48 |
57 |
64 |
71 |
78 |
82 |
80 |
75 |
64 |
55 |
48 |
Average high temperature over 32 years |
°F |
75 |
55 |
60 |
69 |
77 |
82 |
89 |
91 |
91 |
87 |
78 |
68 |
59 |
Average low temperature over 32 years |
°F |
53 |
34 |
37 |
44 |
51 |
60 |
68 |
71 |
69 |
64 |
51 |
43 |
37 |
Highest recorded temperature over 32 years |
°F |
105 |
82 |
84 |
89 |
93 |
98 |
105 |
105 |
102 |
104 |
95 |
87 |
84 |
Lowest recorded temperature over 32 years |
°F |
1 |
1 |
10 |
15 |
26 |
37 |
46 |
51 |
55 |
35 |
26 |
17 |
3 |
Average number of rainy days over 30 years |
days |
110 |
11 |
9 |
10 |
9 |
10 |
8 |
10 |
10 |
8 |
6 |
8 |
10 |
Average number of days above 90°F over 32 years |
days |
83 |
- |
- |
- |
- |
5 |
18 |
24 |
23 |
12 |
1 |
- |
- |
Average precipitation over 32 years |
in |
55.4 |
5.1 |
4.6 |
5.7 |
5.9 |
5.2 |
3.3 |
4.6 |
3.9 |
3.5 |
3.4 |
4.7 |
5.6 |
Average dew point over 32 years |
°F |
55 |
37 |
37 |
46 |
53 |
62 |
68 |
71 |
71 |
66 |
53 |
46 |
39 |
Average number of days above 70°F over 32 years |
days |
253 |
5 |
6 |
16 |
25 |
31 |
30 |
31 |
31 |
30 |
26 |
15 |
7 |
Most recorded rainfall over 32 years |
in |
92.8 |
14.1 |
10.3 |
15.1 |
15.9 |
10.8 |
8.2 |
13.3 |
8.3 |
9.6 |
9.1 |
10.0 |
17.7 |
Least recorded rainfall over 32 years |
in |
38.9 |
0.8 |
1.4 |
2.0 |
1.2 |
0.3 |
0.1 |
1.0 |
0.6 |
0.6 |
- |
0.5 |
0.9 |
Average number of days with thunderstorms over 32 years |
days |
68 |
2 |
3 |
6 |
6 |
7 |
9 |
13 |
10 |
5 |
2 |
3 |
2 |
Average number of days with fog over 32 years |
days |
204 |
16 |
13 |
16 |
15 |
18 |
18 |
18 |
22 |
20 |
17 |
15 |
16 |
Average morning relative humidity over 32 years |
% |
91 |
87 |
87 |
87 |
91 |
92 |
92 |
94 |
95 |
94 |
93 |
90 |
87 |
Average evening relative humidity over 32 years |
% |
54 |
59 |
54 |
51 |
50 |
53 |
53 |
57 |
55 |
54 |
49 |
52 |
58 |
Average wind speed over 32 years |
mph |
9.0 |
10.0 |
10.0 |
10.0 |
10.0 |
9.0 |
8.0 |
6.0 |
6.0 |
8.0 |
8.0 |
9.0 |
10.0 |
Average number of days below 32°F over 32 years |
days |
49 |
15 |
11 |
4 |
- |
- |
- |
- |
- |
- |
- |
6 |
12 |
Average snowfall over 30 years |
in |
0.9 |
0.5 |
0.2 |
0.2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average number of clear days over 30 years |
days |
111 |
8 |
8 |
9 |
10 |
8 |
9 |
8 |
9 |
10 |
15 |
10 |
9 |
Heating degree days over 30 years |
days |
2467 |
656 |
485 |
285 |
87 |
7 |
- |
- |
- |
6 |
104 |
295 |
542 |
Cooling degree days over 30 years |
days |
2215 |
8 |
6 |
28 |
75 |
224 |
414 |
512 |
493 |
333 |
94 |
19 |
9 |
Average possibility of sunshine over 29 years |
% |
61 |
48 |
54 |
60 |
65 |
62 |
70 |
65 |
66 |
64 |
68 |
57 |
48 |
Average number of cloudy days over 30 years |
days |
150 |
17 |
14 |
15 |
13 |
12 |
9 |
10 |
9 |
11 |
10 |
13 |
16 |
Average number of partly cloudy days over 30 years |
days |
104 |
6 |
6 |
7 |
7 |
11 |
12 |
13 |
13 |
9 |
6 |
7 |
6 |