Average temperature over 30 years |
°F |
57 |
32 |
36 |
47 |
57 |
66 |
75 |
78 |
76 |
70 |
58 |
47 |
37 |
Average high temperature over 30 years |
°F |
67 |
41 |
46 |
57 |
68 |
77 |
85 |
89 |
87 |
80 |
70 |
57 |
46 |
Average low temperature over 30 years |
°F |
46 |
23 |
27 |
37 |
47 |
55 |
64 |
68 |
66 |
59 |
46 |
38 |
28 |
Highest recorded temperature over 48 years |
°F |
105 |
75 |
78 |
84 |
89 |
96 |
105 |
105 |
104 |
104 |
93 |
82 |
77 |
Lowest recorded temperature over 48 years |
°F |
-14 |
-14 |
-14 |
-2 |
24 |
34 |
44 |
48 |
44 |
34 |
21 |
-2 |
-9 |
Average number of rainy days over 10 years |
days |
111 |
8 |
10 |
11 |
11 |
11 |
8 |
8 |
7 |
8 |
9 |
10 |
10 |
Average number of days above 90°F over 30 years |
days |
43 |
- |
- |
- |
- |
1.2 |
9.4 |
15 |
13 |
4.1 |
0.1 |
- |
- |
Average precipitation over 30 years |
in |
49.3 |
3.3 |
3.9 |
4.9 |
5.0 |
4.9 |
4.1 |
4.2 |
3.3 |
3.7 |
3.0 |
4.3 |
4.7 |
Average dew point over 27 years |
°F |
46 |
28 |
30 |
36 |
44 |
57 |
64 |
69 |
66 |
59 |
48 |
36 |
30 |
Average number of days above 70°F over 38 years |
days |
189 |
- |
1 |
6 |
15 |
25 |
30 |
31 |
31 |
27 |
18 |
5 |
- |
Most recorded rainfall over 38 years |
in |
70.6 |
14.1 |
13.3 |
14.9 |
14.5 |
9.3 |
9.2 |
12.5 |
7.6 |
9.2 |
7.3 |
10.5 |
11.5 |
Least recorded rainfall over 38 years |
in |
27.8 |
0.6 |
0.9 |
1.0 |
1.5 |
0.7 |
0.3 |
0.5 |
0.4 |
0.1 |
- |
0.8 |
0.6 |
Average number of days with thunderstorms over 37 years |
days |
51 |
1 |
1 |
4 |
5 |
8 |
8 |
8 |
7 |
4 |
2 |
2 |
1 |
Average number of days with fog over 37 years |
days |
168 |
14 |
13 |
13 |
10 |
13 |
13 |
16 |
19 |
18 |
13 |
12 |
14 |
Average morning relative humidity over 27 years |
% |
81 |
83 |
82 |
78 |
75 |
79 |
79 |
81 |
85 |
85 |
84 |
82 |
82 |
Average evening relative humidity over 27 years |
% |
56 |
66 |
60 |
53 |
49 |
54 |
55 |
55 |
54 |
52 |
50 |
57 |
65 |
Average wind speed over 27 years |
mph |
10.0 |
12.0 |
11.0 |
13.0 |
12.0 |
10.0 |
9.0 |
9.0 |
8.0 |
9.0 |
10.0 |
11.0 |
11.0 |
Average number of days below 32°F over 30 years |
days |
87 |
23 |
18 |
12 |
2 |
- |
- |
- |
- |
- |
2 |
11 |
20 |
Average number of days below 0°F over 30 years |
days |
1.6 |
0.9 |
0.2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.4 |
Average snowfall over 30 years |
in |
11.1 |
4.3 |
3.4 |
1.6 |
0.1 |
- |
- |
- |
- |
- |
- |
0.1 |
1.6 |
Average number of clear days over 9 years |
days |
102 |
7 |
6 |
7 |
8 |
7 |
7 |
11 |
11 |
11 |
11 |
9 |
7 |
Most rain reported in a day over 48 years |
in |
7.5 |
3.4 |
6.2 |
5.3 |
4.1 |
4.1 |
3.8 |
5.5 |
3.2 |
7.5 |
3.0 |
4.9 |
4.7 |
Most rain reported in a month over 48 years |
in |
70.6 |
14.1 |
13.3 |
14.9 |
14.5 |
9.9 |
9.5 |
12.5 |
7.6 |
9.2 |
7.3 |
13.8 |
11.5 |
Least rain reported in a month over 48 years |
in |
28.2 |
0.6 |
0.9 |
1.0 |
1.4 |
0.7 |
0.3 |
0.5 |
0.1 |
0.1 |
- |
0.8 |
0.6 |
Heating degree days over 30 years |
days |
4315 |
1002 |
795 |
548 |
250 |
70 |
3 |
- |
1 |
37 |
233 |
516 |
860 |
Cooling degree days over 30 years |
days |
1492 |
- |
- |
6 |
35 |
120 |
308 |
426 |
366 |
190 |
38 |
3 |
- |
Average possibility of sunshine over 9 years |
% |
56 |
46 |
47 |
52 |
64 |
59 |
64 |
68 |
66 |
59 |
61 |
48 |
43 |
Average number of cloudy days over 9 years |
days |
166 |
18 |
15 |
16 |
14 |
15 |
11 |
9 |
9 |
11 |
13 |
17 |
17 |
Average number of partly cloudy days over 9 years |
days |
98 |
6 |
7 |
8 |
8 |
9 |
12 |
11 |
11 |
8 |
7 |
4 |
7 |
Average number of days below 10°F over 38 years |
days |
8 |
4 |
2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
2 |
Most snow reported in a month over 48 years |
in |
37.7 |
24.7 |
15.3 |
24.0 |
3.5 |
- |
- |
- |
- |
- |
2.2 |
4.0 |
7.3 |