Average temperature over 30 years |
°F |
54 |
31 |
33 |
42 |
52 |
62 |
71 |
76 |
75 |
68 |
57 |
47 |
36 |
Average high temperature over 30 years |
°F |
62 |
37 |
40 |
50 |
61 |
71 |
80 |
85 |
83 |
76 |
65 |
53 |
42 |
Average low temperature over 30 years |
°F |
47 |
25 |
26 |
34 |
43 |
53 |
62 |
68 |
67 |
60 |
49 |
41 |
30 |
Highest recorded temperature over 121 years |
°F |
105 |
71 |
75 |
86 |
96 |
98 |
100 |
105 |
104 |
102 |
93 |
84 |
71 |
Lowest recorded temperature over 121 years |
°F |
- |
- |
- |
5 |
12 |
28 |
44 |
51 |
50 |
39 |
28 |
12 |
1 |
Average number of rainy days over 124 years |
days |
121 |
11 |
10 |
11 |
11 |
11 |
10 |
11 |
10 |
8 |
8 |
9 |
10 |
Average number of days above 90°F over 30 years |
days |
16 |
- |
- |
- |
0.1 |
0.8 |
3 |
6.4 |
4 |
1.2 |
- |
- |
- |
Average precipitation over 30 years |
in |
46.7 |
3.4 |
3.3 |
3.9 |
4.0 |
4.4 |
3.7 |
4.4 |
4.1 |
3.9 |
3.6 |
4.5 |
3.9 |
Average dew point over 18 years |
°F |
39 |
17 |
19 |
26 |
34 |
46 |
57 |
62 |
62 |
55 |
44 |
34 |
24 |
Most recorded rainfall over 32 years |
in |
67.0 |
10.5 |
6.0 |
10.4 |
8.3 |
10.2 |
9.3 |
11.8 |
12.4 |
9.3 |
7.8 |
12.4 |
10.0 |
Least recorded rainfall over 32 years |
in |
26.1 |
0.6 |
0.5 |
0.9 |
1.3 |
0.6 |
1.2 |
1.3 |
0.2 |
1.3 |
0.1 |
0.3 |
0.6 |
Average number of days with thunderstorms over 28 years |
days |
20 |
- |
- |
1 |
1 |
3 |
4 |
5 |
4 |
1 |
1 |
- |
- |
Average number of days with fog over 28 years |
days |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
- |
Average morning relative humidity over 18 years |
% |
71 |
67 |
67 |
66 |
64 |
72 |
74 |
74 |
76 |
78 |
75 |
72 |
69 |
Average evening relative humidity over 18 years |
% |
54 |
55 |
53 |
50 |
45 |
52 |
55 |
53 |
54 |
56 |
55 |
58 |
59 |
Average wind speed over 18 years |
mph |
10.0 |
11.0 |
11.0 |
12.0 |
11.0 |
10.0 |
8.0 |
8.0 |
8.0 |
8.0 |
9.0 |
9.0 |
11.0 |
Average number of days below 32°F over 30 years |
days |
82 |
23 |
21 |
14 |
1.9 |
- |
- |
- |
- |
- |
0.2 |
5.1 |
18 |
Average number of days below 0°F over 30 years |
days |
0.1 |
0.1 |
0.1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average snowfall over 30 years |
in |
24.4 |
8.3 |
8.6 |
3.3 |
0.4 |
- |
- |
- |
- |
- |
- |
0.4 |
3.3 |
Average number of days above 65°F over 33 years |
days |
178 |
- |
- |
3 |
11 |
24 |
29 |
31 |
31 |
28 |
16 |
4 |
- |
Average number of clear days over 42 years |
days |
107 |
8 |
8 |
9 |
8 |
8 |
8 |
8 |
9 |
11 |
12 |
9 |
9 |
Most rain reported in a day over 121 years |
in |
8.3 |
3.5 |
3.1 |
4.3 |
3.4 |
4.0 |
4.3 |
3.6 |
4.8 |
8.3 |
7.3 |
7.4 |
3.0 |
Most rain reported in a month over 121 years |
in |
67.0 |
10.5 |
6.8 |
10.4 |
8.3 |
10.2 |
9.8 |
11.9 |
12.4 |
16.9 |
13.3 |
12.4 |
10.0 |
Least rain reported in a month over 121 years |
in |
26.1 |
0.6 |
0.5 |
0.9 |
1.0 |
0.3 |
- |
0.5 |
0.2 |
0.2 |
0.1 |
0.3 |
0.3 |
Heating degree days over 30 years |
days |
4858 |
1032 |
882 |
702 |
385 |
133 |
15 |
1 |
2 |
47 |
254 |
526 |
879 |
Cooling degree days over 30 years |
days |
1141 |
- |
- |
1 |
9 |
62 |
212 |
366 |
328 |
141 |
20 |
2 |
- |
Average possibility of sunshine over 107 years |
% |
58 |
51 |
55 |
57 |
58 |
61 |
64 |
65 |
64 |
62 |
61 |
52 |
49 |
Average number of cloudy days over 42 years |
days |
132 |
14 |
11 |
12 |
12 |
11 |
10 |
10 |
10 |
9 |
9 |
12 |
13 |
Average number of partly cloudy days over 42 years |
days |
127 |
9 |
9 |
10 |
10 |
12 |
12 |
13 |
12 |
10 |
10 |
9 |
9 |
Most snow reported in a month over 121 years |
in |
66.5 |
34.0 |
27.9 |
25.5 |
10.2 |
- |
0.1 |
- |
- |
- |
0.8 |
12.8 |
29.6 |