Average temperature over 18 years |
°F |
48 |
28 |
32 |
39 |
46 |
55 |
66 |
71 |
69 |
60 |
50 |
37 |
30 |
Average high temperature over 18 years |
°F |
62 |
41 |
44 |
51 |
60 |
68 |
78 |
84 |
82 |
75 |
62 |
50 |
42 |
Average low temperature over 18 years |
°F |
36 |
17 |
19 |
26 |
34 |
42 |
51 |
57 |
55 |
48 |
36 |
24 |
17 |
Highest recorded temperature over 18 years |
°F |
98 |
71 |
71 |
78 |
87 |
93 |
98 |
98 |
96 |
93 |
86 |
78 |
75 |
Lowest recorded temperature over 18 years |
°F |
-23 |
-20 |
-18 |
-2 |
8 |
21 |
36 |
46 |
39 |
21 |
6 |
-5 |
-23 |
Average number of rainy days over 45 years |
days |
91 |
5 |
5 |
8 |
8 |
10 |
9 |
13 |
12 |
7 |
5 |
4 |
5 |
Average number of days above 90°F over 18 years |
days |
18 |
- |
- |
- |
- |
- |
4 |
9 |
4 |
1 |
- |
- |
- |
Average precipitation over 18 years |
in |
17.5 |
0.3 |
0.4 |
1.2 |
1.4 |
2.8 |
2.5 |
2.5 |
3.3 |
1.1 |
0.9 |
0.6 |
0.5 |
Average dew point over 47 years |
°F |
26 |
10 |
12 |
16 |
23 |
33 |
41 |
46 |
46 |
37 |
26 |
17 |
10 |
Average number of days above 70°F over 18 years |
days |
145 |
- |
- |
1 |
8 |
15 |
26 |
30 |
29 |
23 |
11 |
2 |
- |
Most recorded rainfall over 18 years |
in |
21.9 |
1.2 |
2.4 |
2.4 |
3.6 |
5.0 |
7.8 |
5.1 |
6.1 |
3.0 |
5.0 |
2.0 |
1.0 |
Least recorded rainfall over 18 years |
in |
12.6 |
- |
- |
0.3 |
0.1 |
0.7 |
0.1 |
0.7 |
1.4 |
- |
- |
- |
- |
Average number of days with thunderstorms over 18 years |
days |
51 |
- |
- |
1 |
2 |
8 |
10 |
12 |
13 |
4 |
1 |
- |
- |
Average number of days with fog over 18 years |
days |
63 |
6 |
7 |
7 |
6 |
5 |
4 |
3 |
4 |
4 |
4 |
6 |
7 |
Average morning relative humidity over 47 years |
% |
63 |
57 |
59 |
62 |
63 |
67 |
66 |
68 |
70 |
65 |
58 |
59 |
56 |
Average evening relative humidity over 47 years |
% |
40 |
46 |
41 |
39 |
36 |
38 |
35 |
39 |
41 |
36 |
36 |
45 |
47 |
Average wind speed over 47 years |
mph |
11.0 |
9.0 |
11.0 |
13.0 |
13.0 |
12.0 |
11.0 |
10.0 |
10.0 |
10.0 |
11.0 |
9.0 |
9.0 |
Average number of days below 32°F over 18 years |
days |
161 |
30 |
26 |
24 |
13 |
2 |
- |
- |
- |
1 |
9 |
25 |
30 |
Average snowfall over 45 years |
in |
42.6 |
5.0 |
5.1 |
9.3 |
6.2 |
1.5 |
- |
- |
- |
1.0 |
3.2 |
5.7 |
5.6 |
Average number of clear days over 44 years |
days |
127 |
12 |
9 |
9 |
8 |
7 |
10 |
9 |
10 |
14 |
15 |
12 |
12 |
Heating degree days over 30 years |
days |
6415 |
1122 |
924 |
859 |
558 |
302 |
87 |
6 |
18 |
164 |
468 |
816 |
1091 |
Cooling degree days over 30 years |
days |
419 |
- |
- |
- |
- |
- |
87 |
186 |
120 |
26 |
- |
- |
- |
Average number of cloudy days over 44 years |
days |
118 |
11 |
11 |
13 |
12 |
12 |
8 |
7 |
8 |
7 |
8 |
10 |
11 |
Average number of partly cloudy days over 44 years |
days |
120 |
8 |
8 |
9 |
10 |
12 |
12 |
15 |
13 |
9 |
8 |
8 |
8 |
Average number of days below 10°F over 18 years |
days |
21 |
7 |
4 |
2 |
- |
- |
- |
- |
- |
- |
- |
1 |
7 |