Average temperature over 18 years |
°F |
48 |
28 |
32 |
41 |
46 |
57 |
62 |
64 |
64 |
59 |
48 |
37 |
32 |
Average high temperature over 18 years |
°F |
55 |
34 |
37 |
48 |
55 |
66 |
69 |
73 |
73 |
66 |
55 |
42 |
36 |
Average low temperature over 18 years |
°F |
41 |
24 |
26 |
33 |
39 |
46 |
53 |
55 |
55 |
50 |
41 |
33 |
28 |
Highest recorded temperature over 18 years |
°F |
98 |
55 |
60 |
75 |
77 |
86 |
89 |
98 |
93 |
86 |
77 |
62 |
57 |
Lowest recorded temperature over 18 years |
°F |
-18 |
-18 |
-9 |
-7 |
26 |
28 |
36 |
44 |
41 |
34 |
23 |
6 |
-2 |
Average number of days above 90°F over 18 years |
days |
1 |
- |
- |
- |
- |
- |
- |
1 |
1 |
- |
- |
- |
- |
Average precipitation over 119 years |
in |
34.2 |
2.0 |
1.9 |
2.1 |
2.6 |
3.4 |
4.2 |
4.6 |
4.0 |
2.8 |
2.1 |
2.2 |
2.3 |
Average dew point over 18 years |
°F |
39 |
26 |
26 |
32 |
36 |
44 |
51 |
53 |
53 |
50 |
42 |
33 |
28 |
Most recorded rainfall over 119 years |
in |
52.2 |
6.0 |
8.3 |
5.8 |
8.1 |
8.3 |
10.0 |
11.3 |
8.2 |
8.1 |
5.5 |
10.0 |
6.6 |
Least recorded rainfall over 119 years |
in |
21.1 |
0.1 |
0.1 |
0.3 |
- |
0.6 |
1.1 |
1.0 |
0.7 |
0.5 |
0.1 |
- |
- |
Average number of days with thunderstorms over 17 years |
days |
32 |
- |
- |
1 |
2 |
5 |
7 |
8 |
7 |
2 |
- |
- |
- |
Average number of days with fog over 17 years |
days |
232 |
23 |
20 |
19 |
14 |
14 |
14 |
16 |
19 |
22 |
24 |
23 |
24 |
Average morning relative humidity over 18 years |
% |
90 |
91 |
91 |
90 |
88 |
86 |
87 |
88 |
91 |
94 |
94 |
92 |
91 |
Average evening relative humidity over 18 years |
% |
63 |
84 |
71 |
57 |
53 |
49 |
52 |
51 |
50 |
55 |
65 |
80 |
85 |
Average wind speed over 18 years |
mph |
9.0 |
11.0 |
9.0 |
9.0 |
9.0 |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
8.0 |
9.0 |
10.0 |
Average number of days below 32°F over 18 years |
days |
109 |
26 |
23 |
15 |
4 |
- |
- |
- |
- |
- |
3 |
15 |
24 |
Average number of days above 65°F over 18 years |
days |
117 |
- |
- |
2 |
5 |
18 |
20 |
26 |
26 |
17 |
4 |
- |
- |
Average number of days below 5°F over 18 years |
days |
3 |
1 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
1 |