Average temperature over 39 years |
°F |
44 |
10 |
17 |
28 |
44 |
57 |
66 |
71 |
69 |
60 |
46 |
30 |
16 |
Average high temperature over 39 years |
°F |
55 |
19 |
26 |
39 |
57 |
69 |
78 |
84 |
84 |
73 |
60 |
39 |
26 |
Average low temperature over 39 years |
°F |
32 |
- |
6 |
19 |
33 |
44 |
53 |
59 |
57 |
46 |
34 |
19 |
6 |
Highest recorded temperature over 39 years |
°F |
111 |
60 |
62 |
82 |
98 |
96 |
107 |
109 |
111 |
102 |
96 |
78 |
62 |
Lowest recorded temperature over 39 years |
°F |
-45 |
-34 |
-45 |
-32 |
-2 |
19 |
33 |
39 |
32 |
17 |
8 |
-27 |
-38 |
Average number of rainy days over 62 years |
days |
87 |
6 |
6 |
7 |
8 |
9 |
10 |
9 |
8 |
6 |
5 |
6 |
6 |
Average number of days above 90°F over 39 years |
days |
23 |
- |
- |
- |
- |
- |
3 |
9 |
7 |
2 |
- |
- |
- |
Average precipitation over 39 years |
in |
19.1 |
0.5 |
0.5 |
1.2 |
1.9 |
2.5 |
3.3 |
3.0 |
2.3 |
1.7 |
1.2 |
0.6 |
0.4 |
Average dew point over 279 years |
°F |
33 |
3 |
10 |
21 |
32 |
43 |
55 |
59 |
57 |
46 |
35 |
21 |
10 |
Most recorded rainfall over 39 years |
in |
28.1 |
1.6 |
2.1 |
3.4 |
7.9 |
7.4 |
8.4 |
7.7 |
5.9 |
5.3 |
5.1 |
2.4 |
1.6 |
Least recorded rainfall over 39 years |
in |
7.9 |
- |
0.1 |
- |
0.1 |
0.3 |
0.4 |
0.3 |
0.3 |
- |
- |
- |
- |
Average number of days with thunderstorms over 30 years |
days |
39 |
- |
- |
- |
2 |
5 |
10 |
10 |
8 |
3 |
1 |
- |
- |
Average number of days with fog over 30 years |
days |
95 |
8 |
8 |
11 |
9 |
7 |
6 |
6 |
7 |
8 |
7 |
8 |
10 |
Average morning relative humidity over 37 years |
% |
82 |
76 |
79 |
83 |
81 |
81 |
85 |
86 |
87 |
85 |
81 |
82 |
80 |
Average evening relative humidity over 38 years |
% |
55 |
69 |
68 |
63 |
48 |
46 |
52 |
47 |
45 |
46 |
47 |
60 |
69 |
Average wind speed over 35 years |
mph |
12.0 |
10.0 |
10.0 |
16.0 |
14.0 |
14.0 |
11.0 |
11.0 |
12.0 |
12.0 |
11.0 |
10.0 |
10.0 |
Average snowfall over 62 years |
in |
35.8 |
6.6 |
6.8 |
6.7 |
3.5 |
0.2 |
- |
- |
- |
- |
0.7 |
5.2 |
6.1 |
Average number of clear days over 27 years |
days |
101 |
8 |
7 |
6 |
7 |
7 |
9 |
11 |
12 |
11 |
10 |
6 |
7 |
Heating degree days over 30 years |
days |
8446 |
1702 |
1352 |
1091 |
594 |
269 |
68 |
15 |
29 |
195 |
549 |
1041 |
1541 |
Cooling degree days over 30 years |
days |
633 |
- |
- |
- |
- |
24 |
116 |
257 |
203 |
33 |
- |
- |
- |
Average number of cloudy days over 27 years |
days |
163 |
16 |
15 |
18 |
16 |
14 |
11 |
7 |
8 |
11 |
13 |
18 |
17 |
Average number of partly cloudy days over 27 years |
days |
101 |
7 |
6 |
7 |
7 |
10 |
10 |
13 |
11 |
8 |
8 |
6 |
7 |
Average number of days below 45°F over 39 years |
days |
246 |
31 |
28 |
31 |
27 |
18 |
4 |
1 |
2 |
15 |
28 |
30 |
31 |
Average number of days above 75°F over 39 years |
days |
108 |
- |
- |
- |
3 |
11 |
21 |
28 |
27 |
14 |
4 |
- |
- |