Average temperature over 48 years |
°F |
57 |
30 |
36 |
44 |
55 |
66 |
75 |
80 |
80 |
71 |
59 |
44 |
34 |
Average high temperature over 48 years |
°F |
68 |
39 |
46 |
55 |
68 |
77 |
87 |
91 |
91 |
82 |
71 |
55 |
44 |
Average low temperature over 48 years |
°F |
44 |
19 |
24 |
33 |
44 |
55 |
64 |
69 |
68 |
59 |
46 |
34 |
24 |
Highest recorded temperature over 48 years |
°F |
113 |
75 |
84 |
89 |
96 |
100 |
109 |
113 |
109 |
107 |
95 |
87 |
82 |
Lowest recorded temperature over 48 years |
°F |
-20 |
-11 |
-20 |
-2 |
15 |
31 |
43 |
51 |
46 |
31 |
17 |
1 |
-16 |
Average number of rainy days over 40 years |
days |
86 |
6 |
5 |
8 |
8 |
11 |
9 |
7 |
7 |
8 |
6 |
5 |
6 |
Average number of days above 90°F over 48 years |
days |
62 |
- |
- |
- |
- |
2 |
12 |
20 |
19 |
7 |
1 |
- |
- |
Average precipitation over 48 years |
in |
29.5 |
0.8 |
1.0 |
2.2 |
2.3 |
4.0 |
4.4 |
3.8 |
3.0 |
3.1 |
2.3 |
1.5 |
1.0 |
Average dew point over 42 years |
°F |
43 |
19 |
24 |
32 |
42 |
53 |
60 |
64 |
62 |
55 |
44 |
33 |
24 |
Average number of days above 70°F over 48 years |
days |
184 |
- |
1 |
6 |
14 |
24 |
29 |
31 |
31 |
27 |
17 |
4 |
- |
Most recorded rainfall over 48 years |
in |
50.5 |
6.3 |
3.3 |
9.2 |
6.3 |
9.6 |
10.5 |
13.4 |
7.9 |
9.5 |
6.1 |
5.9 |
4.7 |
Least recorded rainfall over 48 years |
in |
12.1 |
- |
- |
- |
0.2 |
0.5 |
0.9 |
- |
0.3 |
- |
- |
- |
- |
Average number of days with thunderstorms over 48 years |
days |
54 |
- |
1 |
3 |
5 |
9 |
10 |
8 |
8 |
6 |
3 |
1 |
- |
Average number of days with fog over 48 years |
days |
95 |
10 |
10 |
10 |
8 |
9 |
6 |
4 |
5 |
8 |
7 |
8 |
10 |
Average morning relative humidity over 42 years |
% |
80 |
79 |
79 |
77 |
78 |
83 |
83 |
79 |
80 |
82 |
80 |
80 |
80 |
Average evening relative humidity over 42 years |
% |
49 |
57 |
54 |
48 |
47 |
52 |
47 |
42 |
43 |
47 |
46 |
52 |
57 |
Average wind speed over 42 years |
mph |
13.0 |
14.0 |
14.0 |
16.0 |
16.0 |
14.0 |
14.0 |
12.0 |
12.0 |
13.0 |
13.0 |
13.0 |
12.0 |
Average number of days below 32°F over 48 years |
days |
109 |
28 |
22 |
15 |
3 |
- |
- |
- |
- |
- |
1 |
14 |
26 |
Average snowfall over 40 years |
in |
16.1 |
4.6 |
4.2 |
2.4 |
0.3 |
- |
- |
- |
- |
- |
- |
1.3 |
3.3 |
Average number of clear days over 39 years |
days |
128 |
11 |
8 |
9 |
9 |
8 |
9 |
13 |
13 |
13 |
13 |
11 |
10 |
Heating degree days over 30 years |
days |
4791 |
1101 |
846 |
608 |
278 |
102 |
5 |
- |
- |
29 |
221 |
609 |
992 |
Cooling degree days over 30 years |
days |
1628 |
- |
- |
- |
20 |
121 |
326 |
508 |
443 |
188 |
22 |
- |
- |
Average possibility of sunshine over 40 years |
% |
65 |
60 |
61 |
61 |
64 |
65 |
69 |
76 |
75 |
68 |
66 |
59 |
58 |
Average number of cloudy days over 39 years |
days |
140 |
14 |
13 |
15 |
13 |
13 |
10 |
7 |
8 |
10 |
11 |
13 |
14 |
Average number of partly cloudy days over 39 years |
days |
97 |
6 |
7 |
7 |
8 |
10 |
11 |
11 |
10 |
7 |
7 |
6 |
7 |
Average number of days below 10°F over 48 years |
days |
12 |
6 |
3 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
3 |