Average temperature over 47 years |
°F |
50 |
26 |
28 |
37 |
48 |
60 |
69 |
73 |
71 |
62 |
53 |
42 |
30 |
Average high temperature over 47 years |
°F |
60 |
34 |
37 |
46 |
60 |
71 |
80 |
84 |
82 |
73 |
64 |
51 |
37 |
Average low temperature over 47 years |
°F |
39 |
17 |
19 |
28 |
37 |
46 |
57 |
62 |
60 |
51 |
41 |
33 |
21 |
Highest recorded temperature over 47 years |
°F |
102 |
66 |
73 |
87 |
96 |
96 |
100 |
102 |
100 |
100 |
91 |
82 |
73 |
Lowest recorded temperature over 47 years |
°F |
-25 |
-25 |
-20 |
-7 |
8 |
28 |
37 |
44 |
36 |
26 |
17 |
1 |
-14 |
Average number of rainy days over 39 years |
days |
127 |
11 |
10 |
11 |
11 |
12 |
11 |
10 |
10 |
9 |
9 |
11 |
12 |
Average number of days above 90°F over 47 years |
days |
18 |
- |
- |
- |
- |
1 |
4 |
8 |
4 |
1 |
- |
- |
- |
Average precipitation over 47 years |
in |
44.2 |
3.4 |
3.1 |
3.9 |
3.9 |
3.7 |
3.5 |
3.3 |
4.0 |
3.8 |
3.6 |
4.1 |
3.9 |
Average dew point over 47 years |
°F |
37 |
15 |
17 |
24 |
33 |
44 |
55 |
60 |
60 |
53 |
42 |
32 |
19 |
Most recorded rainfall over 47 years |
in |
64.5 |
9.6 |
7.3 |
9.5 |
9.9 |
12.0 |
13.6 |
8.4 |
21.9 |
9.0 |
11.6 |
8.5 |
8.4 |
Least recorded rainfall over 47 years |
in |
29.0 |
0.4 |
0.4 |
0.3 |
1.4 |
0.7 |
0.3 |
1.1 |
0.5 |
0.8 |
0.3 |
0.5 |
0.8 |
Average number of days with thunderstorms over 46 years |
days |
20 |
- |
- |
1 |
1 |
2 |
4 |
5 |
4 |
2 |
1 |
- |
- |
Average number of days with fog over 46 years |
days |
162 |
12 |
10 |
12 |
12 |
13 |
15 |
16 |
17 |
16 |
14 |
13 |
12 |
Average morning relative humidity over 47 years |
% |
77 |
73 |
73 |
72 |
70 |
73 |
77 |
79 |
83 |
86 |
84 |
79 |
76 |
Average evening relative humidity over 47 years |
% |
53 |
58 |
54 |
51 |
46 |
48 |
51 |
52 |
54 |
55 |
53 |
58 |
61 |
Average wind speed over 47 years |
mph |
10.0 |
11.0 |
12.0 |
12.0 |
10.0 |
9.0 |
9.0 |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
11.0 |
Average number of days below 32°F over 47 years |
days |
134 |
28 |
25 |
22 |
8 |
1 |
- |
- |
- |
- |
6 |
16 |
27 |
Average snowfall over 39 years |
in |
47.3 |
12.0 |
11.4 |
9.9 |
1.6 |
- |
- |
- |
- |
- |
0.1 |
2.0 |
10.3 |
Average number of days above 65°F over 47 years |
days |
168 |
- |
- |
2 |
9 |
24 |
29 |
31 |
31 |
26 |
14 |
3 |
- |
Average number of clear days over 39 years |
days |
82 |
8 |
7 |
7 |
6 |
5 |
6 |
6 |
7 |
8 |
9 |
6 |
7 |
Heating degree days over 30 years |
days |
6151 |
1252 |
1050 |
853 |
489 |
194 |
20 |
- |
6 |
96 |
397 |
693 |
1101 |
Cooling degree days over 30 years |
days |
677 |
- |
- |
- |
- |
27 |
125 |
270 |
210 |
45 |
- |
- |
- |
Average possibility of sunshine over 39 years |
% |
56 |
55 |
57 |
56 |
55 |
57 |
60 |
62 |
62 |
59 |
57 |
46 |
48 |
Average number of cloudy days over 39 years |
days |
175 |
15 |
14 |
16 |
15 |
16 |
14 |
13 |
13 |
13 |
13 |
16 |
16 |
Average number of partly cloudy days over 39 years |
days |
109 |
8 |
7 |
8 |
9 |
10 |
10 |
12 |
11 |
9 |
9 |
8 |
8 |
Average number of days below 5°F over 47 years |
days |
11 |
5 |
3 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
3 |