Average temperature over 48 years |
°F |
64 |
44 |
48 |
55 |
64 |
71 |
78 |
82 |
80 |
75 |
64 |
53 |
46 |
Average high temperature over 48 years |
°F |
75 |
55 |
60 |
68 |
77 |
84 |
89 |
91 |
91 |
84 |
77 |
66 |
59 |
Average low temperature over 48 years |
°F |
51 |
33 |
36 |
42 |
50 |
59 |
66 |
71 |
69 |
64 |
51 |
41 |
35 |
Highest recorded temperature over 48 years |
°F |
107 |
84 |
84 |
91 |
93 |
100 |
107 |
107 |
107 |
100 |
100 |
89 |
82 |
Lowest recorded temperature over 48 years |
°F |
0 |
0 |
5 |
3 |
26 |
34 |
44 |
53 |
53 |
39 |
23 |
12 |
3 |
Average number of rainy days over 46 years |
days |
109 |
10 |
10 |
11 |
8 |
9 |
9 |
12 |
11 |
8 |
6 |
7 |
9 |
Average number of days above 90°F over 48 years |
days |
78 |
- |
- |
- |
2 |
7 |
16 |
23 |
19 |
9 |
1 |
- |
- |
Average precipitation over 48 years |
in |
48.7 |
4.1 |
4.0 |
4.7 |
3.2 |
3.5 |
4.4 |
5.6 |
6.0 |
4.0 |
2.9 |
2.7 |
3.4 |
Average dew point over 48 years |
°F |
51 |
34 |
35 |
41 |
48 |
57 |
64 |
69 |
69 |
64 |
51 |
43 |
36 |
Average number of days above 70°F over 48 years |
days |
242 |
4 |
6 |
14 |
23 |
30 |
30 |
31 |
31 |
29 |
25 |
14 |
5 |
Most recorded rainfall over 48 years |
in |
70.5 |
9.3 |
8.7 |
10.9 |
6.8 |
8.8 |
14.8 |
17.5 |
16.7 |
8.8 |
12.1 |
7.2 |
8.5 |
Least recorded rainfall over 48 years |
in |
27.4 |
0.8 |
0.3 |
0.6 |
0.3 |
0.3 |
0.7 |
0.6 |
1.0 |
0.1 |
- |
0.4 |
0.3 |
Average number of days with thunderstorms over 48 years |
days |
54 |
1 |
2 |
3 |
4 |
6 |
9 |
13 |
10 |
4 |
1 |
1 |
- |
Average number of days with fog over 48 years |
days |
171 |
13 |
12 |
13 |
10 |
14 |
15 |
15 |
20 |
18 |
15 |
13 |
13 |
Average morning relative humidity over 48 years |
% |
86 |
83 |
83 |
84 |
83 |
84 |
85 |
88 |
91 |
91 |
90 |
88 |
84 |
Average evening relative humidity over 48 years |
% |
49 |
51 |
47 |
44 |
41 |
46 |
50 |
54 |
56 |
54 |
49 |
48 |
51 |
Average wind speed over 48 years |
mph |
8.0 |
8.0 |
9.0 |
9.0 |
9.0 |
8.0 |
8.0 |
6.0 |
6.0 |
9.0 |
9.0 |
8.0 |
8.0 |
Average number of days below 32°F over 48 years |
days |
57 |
16 |
12 |
6 |
1 |
- |
- |
- |
- |
- |
1 |
8 |
14 |
Average snowfall over 46 years |
in |
1.9 |
0.5 |
0.8 |
0.3 |
- |
- |
- |
- |
- |
- |
- |
- |
0.3 |
Average number of clear days over 46 years |
days |
116 |
9 |
9 |
9 |
11 |
9 |
8 |
7 |
8 |
10 |
13 |
12 |
10 |
Heating degree days over 30 years |
days |
2649 |
665 |
514 |
317 |
108 |
18 |
- |
- |
- |
5 |
138 |
323 |
561 |
Cooling degree days over 30 years |
days |
1966 |
8 |
- |
13 |
48 |
201 |
372 |
490 |
456 |
281 |
86 |
11 |
- |
Average possibility of sunshine over 40 years |
% |
64 |
55 |
59 |
64 |
69 |
68 |
67 |
66 |
66 |
64 |
66 |
63 |
58 |
Average number of cloudy days over 46 years |
days |
147 |
16 |
13 |
14 |
11 |
12 |
11 |
11 |
10 |
11 |
11 |
12 |
15 |
Average number of partly cloudy days over 46 years |
days |
103 |
6 |
6 |
8 |
8 |
10 |
11 |
13 |
13 |
9 |
7 |
6 |
6 |