Average temperature over 34 years |
°F |
55 |
32 |
36 |
46 |
55 |
64 |
71 |
75 |
73 |
68 |
55 |
46 |
37 |
Average high temperature over 34 years |
°F |
64 |
41 |
44 |
55 |
66 |
75 |
82 |
86 |
84 |
78 |
66 |
55 |
44 |
Average low temperature over 34 years |
°F |
44 |
24 |
26 |
35 |
44 |
53 |
60 |
64 |
64 |
57 |
44 |
37 |
28 |
Highest recorded temperature over 34 years |
°F |
102 |
73 |
78 |
86 |
91 |
93 |
100 |
102 |
100 |
96 |
86 |
82 |
80 |
Lowest recorded temperature over 34 years |
°F |
-20 |
-20 |
-5 |
-2 |
19 |
26 |
39 |
46 |
43 |
31 |
16 |
8 |
-13 |
Average number of rainy days over 32 years |
days |
140 |
14 |
13 |
14 |
13 |
12 |
11 |
12 |
9 |
9 |
9 |
11 |
13 |
Average number of days above 90°F over 34 years |
days |
21 |
- |
- |
- |
- |
1 |
4 |
8 |
6 |
1 |
- |
- |
- |
Average precipitation over 34 years |
in |
41.4 |
2.9 |
2.9 |
4.0 |
3.3 |
4.2 |
3.4 |
4.5 |
3.9 |
2.9 |
2.7 |
3.3 |
3.4 |
Average dew point over 34 years |
°F |
44 |
23 |
24 |
32 |
39 |
51 |
60 |
66 |
64 |
57 |
44 |
35 |
28 |
Average number of days above 70°F over 34 years |
days |
179 |
- |
1 |
6 |
14 |
23 |
29 |
31 |
31 |
25 |
14 |
5 |
1 |
Most recorded rainfall over 34 years |
in |
60.0 |
6.4 |
8.7 |
8.6 |
6.6 |
9.3 |
7.6 |
8.6 |
6.9 |
6.3 |
5.7 |
7.4 |
8.7 |
Least recorded rainfall over 34 years |
in |
30.0 |
0.6 |
0.5 |
1.1 |
0.7 |
0.9 |
0.4 |
1.4 |
0.7 |
0.3 |
- |
0.7 |
0.3 |
Average number of days with thunderstorms over 34 years |
days |
42 |
- |
1 |
3 |
4 |
6 |
7 |
9 |
7 |
3 |
1 |
1 |
- |
Average number of days with fog over 34 years |
days |
198 |
12 |
11 |
12 |
11 |
18 |
20 |
24 |
26 |
23 |
16 |
13 |
12 |
Average morning relative humidity over 34 years |
% |
83 |
78 |
77 |
76 |
76 |
85 |
88 |
90 |
92 |
92 |
87 |
80 |
79 |
Average evening relative humidity over 34 years |
% |
55 |
61 |
56 |
50 |
45 |
51 |
55 |
57 |
57 |
57 |
51 |
56 |
62 |
Average wind speed over 34 years |
mph |
8.0 |
10.0 |
9.0 |
10.0 |
10.0 |
6.0 |
6.0 |
6.0 |
6.0 |
6.0 |
4.0 |
8.0 |
8.0 |
Average number of days below 32°F over 34 years |
days |
96 |
24 |
20 |
13 |
4 |
- |
- |
- |
- |
- |
3 |
11 |
20 |
Average snowfall over 32 years |
in |
25.7 |
8.3 |
7.3 |
4.3 |
0.6 |
- |
- |
- |
- |
- |
0.1 |
1.2 |
3.9 |
Average number of clear days over 32 years |
days |
63 |
5 |
4 |
5 |
5 |
6 |
5 |
5 |
5 |
6 |
9 |
5 |
5 |
Heating degree days over 30 years |
days |
4665 |
1023 |
837 |
589 |
298 |
121 |
11 |
- |
7 |
53 |
300 |
555 |
871 |
Cooling degree days over 30 years |
days |
1005 |
- |
- |
- |
7 |
83 |
188 |
301 |
271 |
131 |
24 |
- |
- |
Average number of cloudy days over 32 years |
days |
203 |
20 |
19 |
19 |
17 |
16 |
14 |
14 |
14 |
14 |
14 |
19 |
21 |
Average number of partly cloudy days over 32 years |
days |
99 |
6 |
5 |
7 |
8 |
9 |
11 |
12 |
12 |
10 |
8 |
6 |
5 |
Average number of days below 10°F over 34 years |
days |
10 |
5 |
3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |