Average temperature over 27 years |
°F |
50 |
21 |
26 |
39 |
51 |
62 |
71 |
75 |
73 |
64 |
53 |
37 |
24 |
Average high temperature over 27 years |
°F |
60 |
30 |
35 |
48 |
62 |
71 |
82 |
84 |
82 |
75 |
62 |
46 |
33 |
Average low temperature over 27 years |
°F |
41 |
12 |
17 |
28 |
39 |
51 |
60 |
66 |
64 |
55 |
43 |
28 |
17 |
Highest recorded temperature over 27 years |
°F |
105 |
66 |
75 |
87 |
96 |
100 |
104 |
104 |
105 |
98 |
93 |
78 |
64 |
Lowest recorded temperature over 27 years |
°F |
-25 |
-22 |
-20 |
-13 |
16 |
24 |
42 |
44 |
44 |
28 |
15 |
-11 |
-25 |
Average number of rainy days over 18 years |
days |
101 |
5 |
6 |
10 |
11 |
12 |
10 |
10 |
9 |
9 |
7 |
6 |
7 |
Average number of days above 90°F over 27 years |
days |
24 |
- |
- |
- |
- |
1 |
5 |
9 |
6 |
2 |
- |
- |
- |
Average precipitation over 27 years |
in |
30.7 |
0.7 |
0.6 |
2.2 |
3.0 |
4.2 |
4.1 |
3.9 |
3.3 |
3.7 |
2.5 |
1.4 |
1.0 |
Average dew point over 9 years |
°F |
39 |
16 |
17 |
28 |
37 |
50 |
57 |
64 |
62 |
53 |
39 |
26 |
17 |
Most recorded rainfall over 27 years |
in |
41.7 |
1.6 |
2.4 |
5.3 |
7.1 |
9.0 |
8.8 |
9.7 |
7.9 |
14.1 |
5.3 |
5.1 |
4.4 |
Least recorded rainfall over 27 years |
in |
21.3 |
- |
0.1 |
0.1 |
0.3 |
0.5 |
0.9 |
1.1 |
0.6 |
1.0 |
0.1 |
- |
0.1 |
Average number of days with thunderstorms over 18 years |
days |
47 |
- |
- |
2 |
3 |
7 |
9 |
9 |
8 |
6 |
2 |
1 |
- |
Average number of days with fog over 18 years |
days |
107 |
8 |
10 |
11 |
9 |
10 |
6 |
7 |
10 |
8 |
8 |
10 |
10 |
Average morning relative humidity over 9 years |
% |
79 |
75 |
77 |
78 |
76 |
79 |
79 |
85 |
87 |
84 |
78 |
78 |
77 |
Average evening relative humidity over 9 years |
% |
55 |
58 |
58 |
54 |
47 |
51 |
51 |
57 |
57 |
54 |
50 |
61 |
64 |
Average wind speed over 9 years |
mph |
11.0 |
13.0 |
12.0 |
10.0 |
13.0 |
10.0 |
10.0 |
9.0 |
9.0 |
10.0 |
10.0 |
13.0 |
13.0 |
Average number of days below 32°F over 27 years |
days |
134 |
30 |
26 |
20 |
6 |
- |
- |
- |
- |
- |
4 |
19 |
29 |
Average snowfall over 39 years |
in |
31.2 |
7.2 |
6.5 |
6.9 |
1.4 |
- |
- |
- |
- |
- |
0.5 |
3.4 |
5.3 |
Average number of days above 65°F over 27 years |
days |
175 |
- |
- |
5 |
12 |
24 |
30 |
31 |
31 |
26 |
15 |
3 |
- |
Average number of clear days over 18 years |
days |
110 |
9 |
8 |
8 |
8 |
7 |
9 |
11 |
11 |
13 |
11 |
8 |
9 |
Heating degree days over 30 years |
days |
6413 |
1380 |
1095 |
846 |
414 |
155 |
11 |
- |
11 |
90 |
363 |
789 |
1259 |
Cooling degree days over 30 years |
days |
1037 |
- |
- |
- |
6 |
75 |
218 |
357 |
287 |
84 |
10 |
- |
- |
Average possibility of sunshine over 57 years |
% |
60 |
55 |
53 |
54 |
58 |
61 |
67 |
74 |
70 |
68 |
65 |
51 |
48 |
Average number of cloudy days over 18 years |
days |
153 |
14 |
15 |
16 |
14 |
14 |
10 |
10 |
9 |
9 |
12 |
15 |
15 |
Average number of partly cloudy days over 18 years |
days |
102 |
8 |
5 |
7 |
8 |
10 |
11 |
10 |
11 |
8 |
8 |
7 |
7 |
Average number of days below 5°F over 27 years |
days |
24 |
10 |
6 |
1 |
- |
- |
- |
- |
- |
- |
- |
1 |
6 |