Average temperature over 47 years |
°F |
46 |
21 |
26 |
34 |
44 |
55 |
64 |
73 |
71 |
60 |
48 |
35 |
26 |
Average high temperature over 47 years |
°F |
60 |
34 |
37 |
44 |
57 |
68 |
78 |
86 |
86 |
75 |
62 |
46 |
37 |
Average low temperature over 47 years |
°F |
34 |
10 |
15 |
21 |
32 |
43 |
51 |
57 |
57 |
46 |
36 |
23 |
14 |
Highest recorded temperature over 47 years |
°F |
109 |
75 |
75 |
82 |
93 |
98 |
105 |
109 |
105 |
104 |
93 |
78 |
75 |
Lowest recorded temperature over 47 years |
°F |
-29 |
-27 |
-25 |
-16 |
1 |
17 |
31 |
39 |
37 |
17 |
-2 |
-18 |
-29 |
Average number of rainy days over 51 years |
days |
96 |
7 |
7 |
9 |
9 |
12 |
12 |
9 |
8 |
6 |
5 |
6 |
6 |
Average number of days above 90°F over 47 years |
days |
31 |
- |
- |
- |
- |
1 |
3 |
11 |
12 |
4 |
- |
- |
- |
Average precipitation over 47 years |
in |
16.1 |
0.4 |
0.5 |
1.0 |
1.8 |
2.7 |
3.0 |
2.0 |
1.5 |
1.1 |
1.0 |
0.6 |
0.4 |
Average dew point over 21 years |
°F |
32 |
12 |
15 |
21 |
28 |
41 |
51 |
53 |
50 |
39 |
31 |
21 |
14 |
Most recorded rainfall over 47 years |
in |
26.0 |
1.7 |
2.5 |
2.7 |
5.2 |
7.0 |
7.0 |
6.1 |
4.8 |
3.1 |
3.8 |
2.2 |
1.6 |
Least recorded rainfall over 47 years |
in |
9.1 |
- |
0.1 |
0.1 |
- |
0.3 |
0.6 |
0.4 |
0.3 |
- |
- |
0.1 |
- |
Average number of days with thunderstorms over 47 years |
days |
40 |
- |
- |
- |
1 |
6 |
10 |
12 |
8 |
3 |
- |
- |
- |
Average number of days with fog over 47 years |
days |
41 |
3 |
5 |
5 |
5 |
4 |
3 |
2 |
2 |
2 |
2 |
4 |
4 |
Average morning relative humidity over 21 years |
% |
71 |
69 |
73 |
76 |
72 |
73 |
74 |
70 |
69 |
69 |
68 |
71 |
70 |
Average evening relative humidity over 21 years |
% |
45 |
54 |
53 |
49 |
42 |
45 |
47 |
38 |
33 |
35 |
38 |
49 |
56 |
Average wind speed over 21 years |
mph |
17.0 |
18.0 |
18.0 |
19.0 |
19.0 |
17.0 |
14.0 |
13.0 |
13.0 |
16.0 |
17.0 |
18.0 |
18.0 |
Average number of days below 32°F over 47 years |
days |
169 |
30 |
26 |
27 |
15 |
2 |
- |
- |
- |
2 |
11 |
25 |
30 |
Average snowfall over 51 years |
in |
39.1 |
5.0 |
6.4 |
8.8 |
6.1 |
0.8 |
0.1 |
- |
- |
0.1 |
1.6 |
5.1 |
5.1 |
Average number of days above 65°F over 47 years |
days |
164 |
- |
1 |
3 |
9 |
20 |
27 |
31 |
30 |
24 |
15 |
3 |
1 |
Average number of clear days over 51 years |
days |
111 |
8 |
6 |
7 |
6 |
7 |
9 |
13 |
14 |
13 |
12 |
8 |
9 |
Heating degree days over 30 years |
days |
7301 |
1324 |
1072 |
958 |
597 |
311 |
103 |
18 |
31 |
211 |
505 |
906 |
1265 |
Cooling degree days over 30 years |
days |
611 |
- |
- |
- |
- |
7 |
97 |
241 |
205 |
61 |
- |
- |
- |
Average possibility of sunshine over 51 years |
% |
63 |
56 |
60 |
63 |
62 |
60 |
65 |
72 |
74 |
69 |
66 |
55 |
55 |
Average number of cloudy days over 51 years |
days |
139 |
15 |
14 |
15 |
15 |
13 |
10 |
5 |
5 |
8 |
11 |
14 |
14 |
Average number of partly cloudy days over 51 years |
days |
115 |
8 |
8 |
9 |
9 |
11 |
11 |
13 |
12 |
9 |
8 |
8 |
8 |
Average number of days below 5°F over 47 years |
days |
30 |
11 |
7 |
3 |
- |
- |
- |
- |
- |
- |
- |
2 |
7 |