Average temperature over 48 years |
°F |
55 |
26 |
33 |
43 |
55 |
64 |
73 |
78 |
77 |
68 |
57 |
43 |
32 |
Average high temperature over 48 years |
°F |
64 |
37 |
43 |
53 |
66 |
75 |
84 |
89 |
87 |
80 |
69 |
53 |
42 |
Average low temperature over 48 years |
°F |
43 |
17 |
21 |
31 |
43 |
53 |
62 |
66 |
64 |
55 |
44 |
32 |
21 |
Highest recorded temperature over 48 years |
°F |
109 |
73 |
80 |
89 |
95 |
96 |
107 |
109 |
109 |
104 |
96 |
84 |
73 |
Lowest recorded temperature over 48 years |
°F |
-25 |
-20 |
-23 |
-7 |
10 |
26 |
42 |
43 |
41 |
28 |
19 |
1 |
-25 |
Average number of rainy days over 47 years |
days |
97 |
6 |
6 |
9 |
10 |
12 |
10 |
9 |
8 |
8 |
7 |
6 |
6 |
Average number of days above 90°F over 48 years |
days |
44 |
- |
- |
- |
- |
1 |
8 |
15 |
14 |
5 |
1 |
- |
- |
Average precipitation over 48 years |
in |
34.6 |
1.0 |
1.1 |
2.4 |
3.1 |
4.5 |
5.1 |
4.3 |
3.9 |
3.4 |
2.7 |
1.8 |
1.3 |
Average dew point over 47 years |
°F |
43 |
17 |
23 |
30 |
41 |
53 |
62 |
66 |
64 |
55 |
44 |
32 |
23 |
Average number of days above 70°F over 48 years |
days |
179 |
- |
1 |
5 |
13 |
24 |
29 |
31 |
31 |
26 |
16 |
4 |
- |
Most recorded rainfall over 48 years |
in |
60.9 |
5.2 |
3.5 |
8.4 |
8.1 |
11.8 |
15.2 |
12.0 |
11.2 |
12.7 |
7.2 |
6.3 |
4.3 |
Least recorded rainfall over 48 years |
in |
19.1 |
- |
- |
0.1 |
0.6 |
0.4 |
0.6 |
0.6 |
0.3 |
0.7 |
- |
- |
- |
Average number of days with thunderstorms over 48 years |
days |
55 |
- |
1 |
3 |
5 |
9 |
10 |
9 |
8 |
6 |
3 |
1 |
- |
Average number of days with fog over 48 years |
days |
114 |
10 |
11 |
11 |
9 |
10 |
8 |
8 |
8 |
10 |
9 |
9 |
11 |
Average morning relative humidity over 47 years |
% |
83 |
78 |
79 |
79 |
80 |
85 |
87 |
86 |
87 |
87 |
83 |
80 |
80 |
Average evening relative humidity over 47 years |
% |
53 |
58 |
56 |
51 |
49 |
52 |
54 |
53 |
52 |
50 |
47 |
52 |
58 |
Average wind speed over 47 years |
mph |
12.0 |
12.0 |
12.0 |
13.0 |
14.0 |
13.0 |
12.0 |
11.0 |
10.0 |
11.0 |
12.0 |
11.0 |
11.0 |
Average number of days below 32°F over 48 years |
days |
122 |
29 |
23 |
17 |
5 |
- |
- |
- |
- |
- |
4 |
17 |
27 |
Average snowfall over 47 years |
in |
21.2 |
6.1 |
4.7 |
3.7 |
0.5 |
- |
- |
- |
- |
- |
- |
1.3 |
4.9 |
Average number of clear days over 46 years |
days |
114 |
10 |
8 |
8 |
8 |
7 |
8 |
11 |
12 |
12 |
13 |
10 |
9 |
Heating degree days over 30 years |
days |
5265 |
1187 |
918 |
663 |
312 |
121 |
5 |
- |
- |
56 |
283 |
660 |
1060 |
Cooling degree days over 30 years |
days |
1304 |
- |
- |
- |
9 |
109 |
263 |
419 |
351 |
140 |
13 |
- |
- |
Average possibility of sunshine over 44 years |
% |
61 |
57 |
55 |
56 |
58 |
61 |
66 |
70 |
70 |
66 |
63 |
54 |
52 |
Average number of cloudy days over 46 years |
days |
154 |
15 |
14 |
16 |
14 |
14 |
12 |
9 |
9 |
10 |
11 |
13 |
15 |
Average number of partly cloudy days over 46 years |
days |
97 |
6 |
6 |
7 |
8 |
10 |
10 |
11 |
10 |
8 |
7 |
7 |
7 |
Average number of days below 10°F over 48 years |
days |
19 |
9 |
4 |
1 |
- |
- |
- |
- |
- |
- |
- |
1 |
4 |