Average temperature over 19 years |
°F |
48 |
28 |
31 |
39 |
46 |
55 |
60 |
64 |
64 |
57 |
48 |
37 |
33 |
Average high temperature over 19 years |
°F |
53 |
33 |
36 |
46 |
53 |
64 |
69 |
73 |
73 |
64 |
55 |
43 |
36 |
Average low temperature over 19 years |
°F |
39 |
24 |
24 |
33 |
37 |
46 |
51 |
55 |
53 |
48 |
41 |
34 |
28 |
Highest recorded temperature over 19 years |
°F |
93 |
53 |
62 |
73 |
80 |
86 |
87 |
93 |
91 |
87 |
78 |
64 |
60 |
Lowest recorded temperature over 19 years |
°F |
-20 |
-20 |
-11 |
5 |
21 |
26 |
34 |
41 |
41 |
32 |
19 |
5 |
-5 |
Average precipitation over 40 years |
in |
28.1 |
1.2 |
1.3 |
1.4 |
2.1 |
3.6 |
4.2 |
3.8 |
3.6 |
2.3 |
1.7 |
1.7 |
1.4 |
Average dew point over 19 years |
°F |
39 |
24 |
26 |
31 |
36 |
44 |
51 |
53 |
53 |
48 |
41 |
33 |
28 |
Most recorded rainfall over 40 years |
in |
39.4 |
2.9 |
4.2 |
2.9 |
5.3 |
9.2 |
8.1 |
8.9 |
9.0 |
5.6 |
5.1 |
3.9 |
3.1 |
Least recorded rainfall over 40 years |
in |
21.4 |
0.2 |
0.2 |
0.1 |
0.2 |
1.3 |
1.3 |
0.7 |
0.8 |
0.1 |
- |
0.6 |
0.2 |
Average number of days with thunderstorms over 19 years |
days |
15 |
- |
- |
- |
- |
3 |
4 |
4 |
3 |
1 |
- |
- |
- |
Average number of days with fog over 19 years |
days |
232 |
22 |
21 |
21 |
17 |
17 |
18 |
16 |
19 |
19 |
21 |
20 |
21 |
Average morning relative humidity over 19 years |
% |
86 |
89 |
89 |
87 |
82 |
81 |
82 |
82 |
86 |
88 |
88 |
88 |
88 |
Average evening relative humidity over 19 years |
% |
65 |
82 |
74 |
62 |
54 |
54 |
57 |
54 |
54 |
60 |
66 |
79 |
84 |
Average wind speed over 19 years |
mph |
11.0 |
13.0 |
12.0 |
11.0 |
10.0 |
9.0 |
10.0 |
9.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
Average number of days below 32°F over 19 years |
days |
103 |
24 |
21 |
15 |
6 |
1 |
- |
- |
- |
- |
4 |
12 |
20 |
Average number of days above 65°F over 19 years |
days |
111 |
- |
- |
1 |
4 |
15 |
20 |
25 |
25 |
15 |
6 |
- |
- |
Average number of days below 5°F over 19 years |
days |
5 |
2 |
2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
Average number of days above 85°F over 19 years |
days |
5 |
- |
- |
- |
- |
- |
1 |
2 |
3 |
- |
- |
- |
- |