Average temperature over 47 years |
°F |
50 |
26 |
28 |
36 |
48 |
59 |
68 |
71 |
69 |
62 |
51 |
41 |
30 |
Average high temperature over 47 years |
°F |
59 |
33 |
35 |
44 |
57 |
69 |
78 |
82 |
80 |
71 |
62 |
48 |
37 |
Average low temperature over 47 years |
°F |
39 |
19 |
19 |
28 |
37 |
48 |
57 |
62 |
60 |
51 |
42 |
33 |
23 |
Highest recorded temperature over 47 years |
°F |
100 |
66 |
73 |
82 |
91 |
93 |
96 |
100 |
98 |
100 |
87 |
80 |
66 |
Lowest recorded temperature over 47 years |
°F |
-20 |
-20 |
-16 |
-4 |
14 |
26 |
34 |
43 |
37 |
30 |
19 |
8 |
-9 |
Average number of rainy days over 38 years |
days |
140 |
12 |
11 |
13 |
12 |
13 |
12 |
11 |
11 |
10 |
10 |
12 |
13 |
Average number of days above 90°F over 47 years |
days |
9 |
- |
- |
- |
- |
- |
2 |
4 |
2 |
1 |
- |
- |
- |
Average precipitation over 47 years |
in |
36.5 |
2.3 |
2.1 |
2.6 |
3.3 |
3.5 |
3.6 |
3.7 |
3.5 |
3.4 |
2.9 |
3.2 |
2.6 |
Average dew point over 47 years |
°F |
39 |
17 |
17 |
24 |
34 |
44 |
55 |
60 |
60 |
53 |
42 |
32 |
21 |
Most recorded rainfall over 47 years |
in |
50.8 |
6.5 |
8.1 |
4.8 |
9.6 |
8.0 |
7.6 |
7.3 |
11.8 |
8.1 |
8.1 |
7.7 |
6.6 |
Least recorded rainfall over 47 years |
in |
26.2 |
0.4 |
0.2 |
0.5 |
1.0 |
0.8 |
0.3 |
1.0 |
0.7 |
0.8 |
- |
0.8 |
0.3 |
Average number of days with thunderstorms over 45 years |
days |
29 |
- |
- |
1 |
2 |
4 |
6 |
7 |
5 |
3 |
1 |
- |
- |
Average number of days with fog over 45 years |
days |
143 |
12 |
9 |
11 |
9 |
11 |
12 |
14 |
15 |
15 |
12 |
11 |
12 |
Average morning relative humidity over 47 years |
% |
79 |
76 |
75 |
74 |
72 |
76 |
81 |
83 |
86 |
87 |
84 |
79 |
78 |
Average evening relative humidity over 47 years |
% |
57 |
64 |
60 |
55 |
50 |
50 |
53 |
54 |
56 |
58 |
56 |
63 |
66 |
Average wind speed over 47 years |
mph |
9.0 |
10.0 |
10.0 |
11.0 |
10.0 |
10.0 |
9.0 |
9.0 |
8.0 |
9.0 |
9.0 |
9.0 |
9.0 |
Average number of days below 32°F over 47 years |
days |
126 |
28 |
24 |
22 |
8 |
1 |
- |
- |
- |
- |
4 |
14 |
25 |
Average snowfall over 38 years |
in |
46.9 |
11.2 |
10.8 |
9.4 |
3.1 |
0.1 |
- |
- |
- |
- |
0.2 |
3.3 |
8.8 |
Average number of days above 65°F over 47 years |
days |
160 |
- |
- |
2 |
9 |
21 |
28 |
31 |
31 |
24 |
12 |
2 |
- |
Average number of clear days over 38 years |
days |
70 |
4 |
4 |
5 |
6 |
6 |
7 |
6 |
7 |
7 |
8 |
4 |
4 |
Heating degree days over 30 years |
days |
6291 |
1249 |
1070 |
871 |
510 |
217 |
38 |
- |
11 |
109 |
423 |
708 |
1085 |
Cooling degree days over 30 years |
days |
539 |
- |
- |
- |
- |
25 |
104 |
210 |
163 |
37 |
- |
- |
- |
Average possibility of sunshine over 38 years |
% |
51 |
42 |
47 |
50 |
53 |
56 |
61 |
62 |
60 |
54 |
52 |
36 |
34 |
Average number of cloudy days over 38 years |
days |
190 |
20 |
17 |
18 |
17 |
15 |
12 |
12 |
12 |
13 |
14 |
19 |
20 |
Average number of partly cloudy days over 38 years |
days |
105 |
7 |
7 |
8 |
7 |
10 |
11 |
13 |
12 |
10 |
9 |
7 |
7 |
Average number of days below 5°F over 47 years |
days |
9 |
4 |
3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |