Average temperature over 48 years |
°F |
60 |
41 |
42 |
48 |
57 |
66 |
75 |
78 |
78 |
71 |
62 |
53 |
44 |
Average high temperature over 48 years |
°F |
69 |
48 |
51 |
57 |
68 |
75 |
84 |
87 |
86 |
80 |
69 |
60 |
51 |
Average low temperature over 48 years |
°F |
51 |
32 |
33 |
39 |
48 |
57 |
66 |
71 |
69 |
64 |
53 |
44 |
35 |
Highest recorded temperature over 48 years |
°F |
104 |
78 |
80 |
87 |
96 |
100 |
100 |
102 |
104 |
98 |
95 |
86 |
80 |
Lowest recorded temperature over 48 years |
°F |
-2 |
-2 |
8 |
17 |
28 |
36 |
44 |
53 |
48 |
44 |
26 |
19 |
6 |
Average number of rainy days over 45 years |
days |
115 |
11 |
10 |
11 |
10 |
10 |
9 |
11 |
10 |
8 |
8 |
8 |
9 |
Average number of days above 90°F over 48 years |
days |
33 |
- |
- |
- |
1 |
2 |
7 |
12 |
9 |
3 |
- |
- |
- |
Average precipitation over 48 years |
in |
44.8 |
3.6 |
3.3 |
3.8 |
3.0 |
3.7 |
3.5 |
5.2 |
5.3 |
3.9 |
3.3 |
3.0 |
3.1 |
Average dew point over 48 years |
°F |
48 |
30 |
30 |
36 |
44 |
55 |
62 |
69 |
68 |
62 |
51 |
42 |
33 |
Average number of days above 70°F over 48 years |
days |
190 |
1 |
2 |
6 |
13 |
23 |
29 |
31 |
31 |
28 |
16 |
7 |
2 |
Most recorded rainfall over 48 years |
in |
65.0 |
9.9 |
6.2 |
10.4 |
7.3 |
10.1 |
9.7 |
14.4 |
14.3 |
13.8 |
10.1 |
7.0 |
6.1 |
Least recorded rainfall over 48 years |
in |
26.5 |
1.0 |
0.8 |
0.8 |
0.4 |
0.6 |
0.4 |
0.4 |
0.7 |
0.3 |
0.6 |
0.5 |
0.7 |
Average number of days with thunderstorms over 48 years |
days |
38 |
- |
1 |
2 |
3 |
5 |
6 |
9 |
7 |
3 |
1 |
1 |
- |
Average number of days with fog over 48 years |
days |
153 |
13 |
12 |
12 |
11 |
13 |
12 |
12 |
15 |
14 |
14 |
13 |
12 |
Average morning relative humidity over 48 years |
% |
78 |
74 |
74 |
74 |
73 |
77 |
79 |
81 |
84 |
83 |
82 |
79 |
75 |
Average evening relative humidity over 48 years |
% |
58 |
59 |
56 |
53 |
50 |
56 |
57 |
60 |
63 |
62 |
60 |
58 |
59 |
Average wind speed over 48 years |
mph |
11.0 |
12.0 |
13.0 |
13.0 |
12.0 |
11.0 |
11.0 |
10.0 |
9.0 |
12.0 |
12.0 |
10.0 |
11.0 |
Average number of days below 32°F over 48 years |
days |
53 |
16 |
14 |
6 |
- |
- |
- |
- |
- |
- |
- |
3 |
13 |
Average snowfall over 45 years |
in |
7.4 |
2.6 |
2.9 |
1.0 |
- |
- |
- |
- |
- |
- |
- |
- |
0.9 |
Average number of clear days over 45 years |
days |
105 |
9 |
8 |
9 |
9 |
8 |
7 |
7 |
8 |
9 |
12 |
10 |
9 |
Heating degree days over 30 years |
days |
3495 |
803 |
672 |
508 |
249 |
51 |
- |
- |
- |
11 |
164 |
380 |
657 |
Cooling degree days over 30 years |
days |
1422 |
- |
- |
- |
9 |
85 |
277 |
409 |
378 |
218 |
46 |
- |
- |
Average possibility of sunshine over 29 years |
% |
60 |
54 |
57 |
60 |
63 |
63 |
67 |
63 |
62 |
62 |
59 |
57 |
56 |
Average number of cloudy days over 45 years |
days |
153 |
16 |
14 |
15 |
12 |
13 |
11 |
12 |
11 |
11 |
12 |
12 |
15 |
Average number of partly cloudy days over 45 years |
days |
107 |
6 |
6 |
7 |
9 |
10 |
12 |
12 |
12 |
10 |
7 |
8 |
7 |