Average temperature over 48 years |
°F |
59 |
37 |
42 |
50 |
59 |
66 |
75 |
78 |
77 |
71 |
60 |
48 |
41 |
Average high temperature over 48 years |
°F |
69 |
46 |
51 |
60 |
71 |
78 |
84 |
87 |
87 |
82 |
71 |
59 |
50 |
Average low temperature over 48 years |
°F |
48 |
28 |
32 |
39 |
46 |
55 |
64 |
68 |
66 |
60 |
48 |
37 |
32 |
Highest recorded temperature over 48 years |
°F |
102 |
77 |
82 |
86 |
91 |
93 |
102 |
102 |
102 |
102 |
91 |
84 |
80 |
Lowest recorded temperature over 48 years |
°F |
-23 |
-23 |
-2 |
1 |
21 |
32 |
43 |
48 |
53 |
36 |
24 |
5 |
-5 |
Average number of rainy days over 51 years |
days |
126 |
12 |
11 |
13 |
11 |
11 |
10 |
11 |
9 |
8 |
8 |
10 |
11 |
Average number of days above 90°F over 48 years |
days |
33 |
- |
- |
- |
- |
1 |
6 |
12 |
10 |
3 |
- |
- |
- |
Average precipitation over 48 years |
in |
47.1 |
4.5 |
4.4 |
5.1 |
3.6 |
3.9 |
3.8 |
4.4 |
3.2 |
2.9 |
2.7 |
3.9 |
4.6 |
Average dew point over 48 years |
°F |
48 |
28 |
31 |
37 |
44 |
55 |
64 |
66 |
66 |
60 |
48 |
37 |
32 |
Average number of days above 70°F over 48 years |
days |
200 |
1 |
2 |
8 |
18 |
27 |
30 |
31 |
31 |
28 |
19 |
6 |
1 |
Most recorded rainfall over 48 years |
in |
63.3 |
11.7 |
8.8 |
11.8 |
7.9 |
11.0 |
8.2 |
10.1 |
6.7 |
9.2 |
6.7 |
10.4 |
11.6 |
Least recorded rainfall over 48 years |
in |
32.5 |
0.9 |
0.3 |
1.7 |
0.4 |
0.7 |
0.5 |
0.3 |
0.8 |
0.4 |
- |
1.2 |
0.4 |
Average number of days with thunderstorms over 48 years |
days |
47 |
1 |
1 |
3 |
4 |
7 |
8 |
10 |
7 |
3 |
1 |
1 |
1 |
Average number of days with fog over 48 years |
days |
175 |
14 |
12 |
11 |
9 |
14 |
15 |
17 |
20 |
18 |
17 |
14 |
14 |
Average morning relative humidity over 48 years |
% |
85 |
81 |
80 |
80 |
80 |
85 |
87 |
89 |
91 |
91 |
89 |
84 |
83 |
Average evening relative humidity over 48 years |
% |
54 |
60 |
54 |
50 |
47 |
52 |
55 |
56 |
56 |
54 |
51 |
54 |
60 |
Average wind speed over 48 years |
mph |
8.0 |
6.0 |
8.0 |
11.0 |
11.0 |
9.0 |
9.0 |
8.0 |
6.0 |
6.0 |
6.0 |
6.0 |
6.0 |
Average number of days below 32°F over 48 years |
days |
72 |
19 |
15 |
9 |
1 |
- |
- |
- |
- |
- |
1 |
9 |
17 |
Average snowfall over 51 years |
in |
11.9 |
3.9 |
3.6 |
1.8 |
0.4 |
- |
- |
- |
- |
- |
- |
0.6 |
1.6 |
Average number of clear days over 51 years |
days |
97 |
6 |
7 |
7 |
8 |
8 |
8 |
7 |
9 |
9 |
12 |
9 |
7 |
Heating degree days over 30 years |
days |
3937 |
899 |
697 |
496 |
234 |
94 |
- |
- |
- |
18 |
238 |
489 |
772 |
Cooling degree days over 30 years |
days |
1266 |
- |
- |
- |
9 |
106 |
246 |
360 |
341 |
171 |
33 |
- |
- |
Average possibility of sunshine over 51 years |
% |
56 |
40 |
47 |
53 |
62 |
64 |
65 |
63 |
63 |
61 |
61 |
49 |
40 |
Average number of cloudy days over 51 years |
days |
162 |
18 |
15 |
17 |
13 |
13 |
10 |
11 |
10 |
11 |
11 |
14 |
17 |
Average number of partly cloudy days over 51 years |
days |
107 |
7 |
6 |
7 |
9 |
10 |
12 |
13 |
12 |
10 |
8 |
7 |
7 |
Average number of days below 10°F over 48 years |
days |
3 |
2 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
1 |