Average temperature over 48 years |
°F |
55 |
32 |
37 |
44 |
55 |
64 |
73 |
78 |
77 |
69 |
57 |
44 |
36 |
Average high temperature over 48 years |
°F |
66 |
42 |
46 |
55 |
68 |
75 |
84 |
89 |
87 |
80 |
69 |
55 |
46 |
Average low temperature over 48 years |
°F |
44 |
21 |
26 |
34 |
44 |
53 |
62 |
66 |
64 |
57 |
46 |
35 |
26 |
Highest recorded temperature over 48 years |
°F |
113 |
75 |
80 |
87 |
93 |
93 |
100 |
113 |
105 |
100 |
93 |
80 |
77 |
Lowest recorded temperature over 48 years |
°F |
-16 |
-13 |
-16 |
-2 |
17 |
30 |
42 |
44 |
44 |
31 |
17 |
3 |
-16 |
Average number of rainy days over 48 years |
days |
108 |
8 |
8 |
10 |
11 |
11 |
10 |
8 |
9 |
8 |
8 |
8 |
9 |
Average number of days above 90°F over 48 years |
days |
42 |
- |
- |
- |
- |
- |
7 |
16 |
15 |
4 |
- |
- |
- |
Average precipitation over 48 years |
in |
42.2 |
1.9 |
2.2 |
3.4 |
4.1 |
4.6 |
5.0 |
3.6 |
3.2 |
4.4 |
3.4 |
3.4 |
2.9 |
Average dew point over 48 years |
°F |
44 |
21 |
26 |
33 |
43 |
53 |
62 |
66 |
64 |
57 |
46 |
34 |
26 |
Average number of days above 70°F over 48 years |
days |
184 |
- |
1 |
6 |
14 |
24 |
29 |
31 |
31 |
26 |
17 |
5 |
- |
Most recorded rainfall over 48 years |
in |
63.2 |
6.8 |
5.7 |
9.0 |
10.6 |
13.4 |
11.3 |
18.8 |
8.6 |
17.5 |
8.7 |
12.2 |
8.8 |
Least recorded rainfall over 48 years |
in |
25.2 |
0.1 |
0.4 |
0.5 |
0.1 |
1.5 |
0.2 |
0.3 |
0.5 |
0.2 |
0.4 |
0.2 |
0.1 |
Average number of days with thunderstorms over 48 years |
days |
56 |
1 |
1 |
4 |
6 |
8 |
9 |
8 |
8 |
5 |
3 |
2 |
1 |
Average number of days with fog over 48 years |
days |
124 |
12 |
12 |
11 |
9 |
10 |
9 |
8 |
10 |
11 |
10 |
10 |
12 |
Average morning relative humidity over 48 years |
% |
83 |
79 |
80 |
79 |
79 |
85 |
87 |
87 |
88 |
87 |
82 |
80 |
80 |
Average evening relative humidity over 48 years |
% |
54 |
59 |
55 |
52 |
50 |
56 |
56 |
53 |
50 |
52 |
50 |
54 |
59 |
Average wind speed over 48 years |
mph |
11.0 |
12.0 |
12.0 |
13.0 |
12.0 |
11.0 |
10.0 |
9.0 |
9.0 |
10.0 |
11.0 |
12.0 |
12.0 |
Average number of days below 32°F over 48 years |
days |
101 |
26 |
20 |
14 |
3 |
- |
- |
- |
- |
- |
2 |
13 |
23 |
Average snowfall over 48 years |
in |
17.1 |
4.4 |
4.4 |
3.3 |
0.4 |
- |
- |
- |
- |
- |
- |
1.6 |
3.0 |
Average number of clear days over 48 years |
days |
115 |
8 |
7 |
7 |
8 |
7 |
8 |
12 |
12 |
12 |
13 |
10 |
9 |
Heating degree days over 30 years |
days |
4638 |
1051 |
820 |
589 |
280 |
110 |
5 |
- |
- |
43 |
249 |
570 |
921 |
Cooling degree days over 30 years |
days |
1320 |
- |
- |
- |
10 |
98 |
251 |
406 |
366 |
163 |
26 |
- |
- |
Average possibility of sunshine over 48 years |
% |
60 |
51 |
53 |
56 |
59 |
61 |
65 |
71 |
71 |
68 |
64 |
53 |
48 |
Average number of cloudy days over 48 years |
days |
154 |
16 |
15 |
16 |
14 |
14 |
11 |
9 |
9 |
11 |
11 |
14 |
16 |
Average number of partly cloudy days over 48 years |
days |
96 |
7 |
6 |
8 |
8 |
10 |
11 |
10 |
10 |
7 |
7 |
6 |
6 |
Average number of days below 10°F over 48 years |
days |
12 |
6 |
3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
3 |