Average temperature over 75 years |
°F |
57 |
37 |
39 |
48 |
57 |
66 |
75 |
78 |
77 |
71 |
59 |
50 |
41 |
Average high temperature over 75 years |
°F |
69 |
46 |
50 |
59 |
69 |
78 |
84 |
87 |
87 |
80 |
71 |
60 |
50 |
Average low temperature over 75 years |
°F |
48 |
28 |
30 |
37 |
44 |
55 |
62 |
68 |
66 |
60 |
48 |
39 |
31 |
Highest recorded temperature over 75 years |
°F |
105 |
80 |
82 |
91 |
96 |
98 |
104 |
105 |
102 |
102 |
98 |
86 |
80 |
Lowest recorded temperature over 75 years |
°F |
-7 |
-5 |
-7 |
10 |
19 |
31 |
39 |
51 |
39 |
35 |
21 |
14 |
1 |
Average number of rainy days over 56 years |
days |
113 |
10 |
9 |
11 |
9 |
11 |
9 |
11 |
10 |
8 |
7 |
8 |
9 |
Average number of days above 90°F over 75 years |
days |
41 |
- |
- |
- |
1 |
2 |
9 |
14 |
11 |
4 |
- |
- |
- |
Average precipitation over 75 years |
in |
42.7 |
3.3 |
2.9 |
3.7 |
3.1 |
3.7 |
3.6 |
5.1 |
4.8 |
3.3 |
3.1 |
2.9 |
3.1 |
Average dew point over 384 years |
°F |
46 |
26 |
26 |
34 |
42 |
53 |
62 |
68 |
66 |
60 |
48 |
37 |
30 |
Average number of days above 70°F over 75 years |
days |
193 |
1 |
2 |
6 |
15 |
26 |
29 |
31 |
31 |
27 |
17 |
7 |
1 |
Most recorded rainfall over 75 years |
in |
61.3 |
10.1 |
6.0 |
8.6 |
7.3 |
8.9 |
9.3 |
16.1 |
14.1 |
11.0 |
9.4 |
7.6 |
7.1 |
Least recorded rainfall over 75 years |
in |
26.8 |
0.6 |
0.3 |
0.9 |
0.5 |
0.4 |
0.4 |
0.5 |
0.6 |
0.3 |
0.3 |
0.2 |
0.4 |
Average number of days with thunderstorms over 59 years |
days |
42 |
- |
- |
2 |
3 |
6 |
8 |
10 |
8 |
3 |
1 |
1 |
- |
Average number of days with fog over 59 years |
days |
144 |
11 |
9 |
10 |
9 |
13 |
12 |
14 |
16 |
15 |
14 |
11 |
10 |
Average morning relative humidity over 48 years |
% |
83 |
80 |
79 |
78 |
76 |
81 |
82 |
85 |
89 |
90 |
89 |
84 |
80 |
Average evening relative humidity over 48 years |
% |
52 |
55 |
50 |
46 |
43 |
51 |
53 |
56 |
58 |
57 |
53 |
51 |
55 |
Average wind speed over 48 years |
mph |
8.0 |
8.0 |
9.0 |
10.0 |
10.0 |
8.0 |
6.0 |
8.0 |
6.0 |
8.0 |
8.0 |
8.0 |
8.0 |
Average number of days below 32°F over 75 years |
days |
79 |
21 |
18 |
11 |
2 |
- |
- |
- |
- |
- |
1 |
9 |
19 |
Average snowfall over 56 years |
in |
13.9 |
4.9 |
4.1 |
2.4 |
0.1 |
- |
- |
- |
- |
- |
- |
0.4 |
2.0 |
Average number of clear days over 48 years |
days |
100 |
8 |
8 |
8 |
8 |
7 |
7 |
7 |
7 |
9 |
12 |
9 |
10 |
Heating degree days over 30 years |
days |
3963 |
908 |
736 |
527 |
241 |
61 |
- |
- |
- |
23 |
233 |
462 |
772 |
Cooling degree days over 30 years |
days |
1348 |
- |
- |
- |
10 |
92 |
270 |
403 |
366 |
173 |
34 |
- |
- |
Average possibility of sunshine over 43 years |
% |
63 |
54 |
58 |
62 |
66 |
66 |
70 |
68 |
66 |
64 |
63 |
59 |
54 |
Average number of cloudy days over 48 years |
days |
160 |
16 |
14 |
15 |
13 |
14 |
11 |
12 |
12 |
12 |
12 |
13 |
15 |
Average number of partly cloudy days over 48 years |
days |
106 |
7 |
6 |
8 |
9 |
10 |
12 |
12 |
12 |
9 |
7 |
8 |
6 |
Average number of days below 10°F over 75 years |
days |
3 |
2 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |