Average temperature over 43 years |
°F |
64 |
57 |
57 |
59 |
62 |
64 |
66 |
71 |
73 |
71 |
66 |
64 |
59 |
Average high temperature over 43 years |
°F |
73 |
64 |
66 |
68 |
69 |
73 |
75 |
82 |
82 |
80 |
77 |
73 |
68 |
Average low temperature over 43 years |
°F |
55 |
48 |
48 |
50 |
53 |
55 |
57 |
62 |
62 |
60 |
57 |
53 |
50 |
Highest recorded temperature over 43 years |
°F |
109 |
89 |
91 |
93 |
96 |
98 |
104 |
102 |
102 |
109 |
104 |
96 |
91 |
Lowest recorded temperature over 43 years |
°F |
24 |
28 |
34 |
37 |
41 |
43 |
50 |
53 |
51 |
50 |
46 |
39 |
24 |
Average number of rainy days over 58 years |
days |
35 |
6 |
6 |
6 |
3 |
1 |
- |
1 |
- |
1 |
2 |
3 |
5 |
Average number of days above 90°F over 43 years |
days |
16 |
- |
- |
- |
1 |
1 |
1 |
3 |
3 |
5 |
3 |
1 |
- |
Average precipitation over 43 years |
in |
14.0 |
2.7 |
3.1 |
2.2 |
1.3 |
0.3 |
0.1 |
- |
- |
0.2 |
0.4 |
1.1 |
2.5 |
Most recorded rainfall over 43 years |
in |
31.3 |
10.0 |
12.4 |
8.1 |
9.9 |
3.6 |
1.1 |
- |
0.4 |
5.7 |
2.3 |
6.0 |
8.5 |
Least recorded rainfall over 43 years |
in |
4.1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average number of days with thunderstorms over 20 years |
days |
2 |
- |
1 |
- |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
Average number of days with fog over 20 years |
days |
56 |
3 |
4 |
3 |
4 |
4 |
6 |
5 |
5 |
8 |
6 |
5 |
3 |
Average morning relative humidity over 34 years |
% |
79 |
70 |
74 |
79 |
80 |
83 |
85 |
86 |
86 |
83 |
79 |
72 |
68 |
Average evening relative humidity over 34 years |
% |
64 |
59 |
63 |
65 |
64 |
66 |
67 |
68 |
69 |
67 |
65 |
61 |
59 |
Average wind speed over 45 years |
mph |
7.5 |
6.7 |
7.4 |
8.1 |
8.5 |
8.4 |
8.0 |
7.9 |
7.8 |
7.3 |
7.0 |
6.7 |
6.6 |
Average number of clear days over 58 years |
days |
147 |
12 |
11 |
12 |
12 |
10 |
10 |
13 |
14 |
13 |
13 |
15 |
13 |
Heating degree days over 30 years |
days |
1458 |
258 |
215 |
224 |
158 |
96 |
54 |
9 |
5 |
22 |
32 |
127 |
258 |
Cooling degree days over 30 years |
days |
727 |
- |
8 |
7 |
11 |
25 |
75 |
136 |
176 |
169 |
88 |
25 |
7 |
Average number of cloudy days over 58 years |
days |
102 |
11 |
11 |
11 |
9 |
10 |
9 |
5 |
5 |
6 |
8 |
7 |
10 |
Average number of partly cloudy days over 58 years |
days |
116 |
8 |
6 |
8 |
9 |
11 |
11 |
13 |
12 |
11 |
10 |
8 |
8 |
Average number of days below 45°F over 43 years |
days |
28 |
9 |
7 |
4 |
1 |
- |
- |
- |
- |
- |
- |
1 |
5 |
Average number of days above 75°F over 43 years |
days |
169 |
5 |
4 |
6 |
8 |
10 |
17 |
29 |
30 |
25 |
17 |
13 |
6 |