Average temperature over 37 years |
°F |
55 |
33 |
36 |
44 |
55 |
64 |
71 |
77 |
75 |
69 |
57 |
46 |
37 |
Average high temperature over 37 years |
°F |
66 |
42 |
44 |
55 |
66 |
75 |
82 |
87 |
84 |
78 |
68 |
57 |
46 |
Average low temperature over 37 years |
°F |
44 |
24 |
26 |
34 |
43 |
51 |
60 |
66 |
64 |
57 |
44 |
37 |
28 |
Highest recorded temperature over 37 years |
°F |
105 |
73 |
75 |
87 |
96 |
96 |
100 |
104 |
105 |
100 |
91 |
84 |
77 |
Lowest recorded temperature over 37 years |
°F |
-9 |
-9 |
-2 |
-2 |
19 |
28 |
37 |
44 |
44 |
35 |
24 |
15 |
-4 |
Average number of rainy days over 37 years |
days |
116 |
10 |
9 |
11 |
10 |
11 |
10 |
10 |
10 |
8 |
8 |
9 |
10 |
Average precipitation over 37 years |
in |
42.2 |
2.9 |
2.9 |
3.8 |
3.2 |
3.8 |
3.5 |
3.9 |
4.2 |
3.8 |
3.3 |
3.3 |
3.4 |
Average dew point over 10 years |
°F |
44 |
21 |
23 |
30 |
39 |
51 |
60 |
66 |
64 |
59 |
46 |
36 |
24 |
Average number of days with thunderstorms over 37 years |
days |
37 |
1 |
1 |
1 |
3 |
5 |
7 |
8 |
6 |
3 |
1 |
1 |
- |
Average number of days with fog over 37 years |
days |
196 |
13 |
12 |
13 |
13 |
19 |
18 |
20 |
21 |
20 |
18 |
15 |
14 |
Average morning relative humidity over 10 years |
% |
76.3 |
70.3 |
70.2 |
70 |
72.7 |
78 |
76.6 |
78.6 |
82.6 |
85.4 |
83.7 |
76.4 |
70.4 |
Average evening relative humidity over 10 years |
% |
51.8 |
51.1 |
49 |
45.9 |
45.6 |
51.9 |
52.3 |
55.1 |
57.7 |
57.7 |
52.8 |
51.6 |
51.1 |
Average wind speed over 12 years |
mph |
11.0 |
4.0 |
4.0 |
4.0 |
3.0 |
3.0 |
2.0 |
2.0 |
2.0 |
2.0 |
3.0 |
4.0 |
3.0 |
Average snowfall over 37 years |
in |
20.9 |
5.8 |
6.7 |
3.6 |
0.1 |
- |
- |
- |
- |
- |
0.1 |
0.9 |
3.4 |
Most rain reported in a day over 37 years |
in |
9.1 |
1.7 |
2.0 |
2.7 |
2.7 |
2.6 |
9.1 |
3.3 |
4.3 |
4.6 |
3.2 |
3.1 |
2.9 |
Most rain reported in a month over 37 years |
in |
61.8 |
8.8 |
6.6 |
8.4 |
8.7 |
9.4 |
16.2 |
8.7 |
9.4 |
13.4 |
8.0 |
7.3 |
7.3 |
Least rain reported in a month over 37 years |
in |
29.7 |
0.4 |
0.4 |
0.7 |
0.2 |
0.9 |
0.8 |
0.7 |
0.3 |
0.8 |
0.1 |
0.4 |
0.4 |
Heating degree days over 37 years |
days |
4513 |
981 |
803 |
620 |
318 |
109 |
12 |
- |
1 |
41 |
267 |
519 |
842 |
Cooling degree days over 37 years |
days |
1245 |
- |
- |
3 |
18 |
81 |
235 |
380 |
341 |
161 |
23 |
3 |
- |
Average number of days below 10°F over 37 years |
days |
6 |
3 |
1 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
Average number of days above 80°F over 12 years |
days |
37 |
- |
1 |
4 |
10 |
21 |
28 |
26 |
14 |
3 |
1 |
- |
108 |
Most snow reported in a month over 37 years |
in |
67.8 |
35.0 |
24.3 |
26.2 |
2.0 |
- |
- |
- |
- |
- |
2.8 |
10.8 |
24.8 |
Average possibility of clouds over 10 years |
% |
54.2 |
58.8 |
58.5 |
55.9 |
54.5 |
56.1 |
52.5 |
55.8 |
52.5 |
50.7 |
43.3 |
54.3 |
57.1 |
Average number of snowy days over 37 years |
days |
10 |
3 |
2 |
1 |
1 |
- |
- |
- |
- |
- |
- |
1 |
2 |
Average number of days below 33°F over 37 years |
days |
100 |
25 |
21 |
14 |
4 |
1 |
- |
- |
- |
- |
3 |
11 |
21 |
Most snow reported in a day over 37 years |
in |
77.9 |
18.2 |
12.8 |
2.0 |
- |
- |
- |
- |
- |
2.8 |
10.8 |
12.6 |
18.7 |
Deepest snow cover reported over 37 years |
in |
24.0 |
24.0 |
22.0 |
9.0 |
1.0 |
- |
- |
- |
- |
- |
- |
11.0 |
13.0 |
Average wet bulb point over 10 years |
°F |
50 |
30 |
32 |
39 |
48 |
57 |
64 |
71 |
69 |
62 |
50 |
43 |
33 |