Average temperature over 54 years |
°F |
53 |
48 |
48 |
48 |
51 |
53 |
55 |
57 |
57 |
57 |
55 |
51 |
48 |
Average high temperature over 54 years |
°F |
57 |
53 |
55 |
55 |
55 |
57 |
60 |
60 |
62 |
62 |
60 |
57 |
55 |
Average low temperature over 54 years |
°F |
46 |
41 |
43 |
43 |
44 |
48 |
51 |
51 |
53 |
51 |
48 |
44 |
42 |
Highest recorded temperature over 54 years |
°F |
87 |
78 |
80 |
75 |
80 |
82 |
84 |
75 |
82 |
86 |
87 |
78 |
77 |
Lowest recorded temperature over 54 years |
°F |
21 |
26 |
26 |
30 |
34 |
36 |
41 |
46 |
46 |
41 |
32 |
28 |
21 |
Average number of rainy days over 83 years |
days |
117 |
16 |
14 |
16 |
12 |
8 |
5 |
2 |
3 |
4 |
9 |
13 |
15 |
Average precipitation over 54 years |
in |
38.0 |
6.4 |
5.0 |
5.2 |
2.9 |
1.8 |
0.6 |
0.2 |
0.3 |
0.8 |
2.8 |
5.6 |
6.4 |
Average relative humidity over 12 years |
% |
85 |
81 |
83 |
81 |
84 |
84 |
87 |
89 |
89 |
87 |
86 |
84 |
84 |
Average dew point over 12 years |
°F |
46 |
41 |
42 |
41 |
44 |
46 |
50 |
51 |
51 |
51 |
48 |
44 |
43 |
Most recorded rainfall over 54 years |
in |
67.2 |
13.9 |
10.8 |
11.2 |
10.7 |
6.0 |
2.6 |
1.2 |
3.4 |
3.3 |
13.0 |
16.6 |
14.1 |
Least recorded rainfall over 54 years |
in |
21.1 |
0.7 |
0.1 |
1.2 |
0.3 |
- |
- |
- |
- |
- |
- |
0.3 |
0.5 |
Average number of days with thunderstorms over 33 years |
days |
4 |
1 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
1 |
Average number of days with fog over 33 years |
days |
191 |
13 |
11 |
10 |
12 |
13 |
16 |
22 |
22 |
21 |
21 |
15 |
15 |
Average wind speed over 54 years |
mph |
6.8 |
6.9 |
7.2 |
7.6 |
8.0 |
7.9 |
7.4 |
6.8 |
5.8 |
5.5 |
5.6 |
6.0 |
6.4 |
Average number of days below 32°F over 12 years |
days |
4.8 |
2.3 |
0.8 |
0.6 |
- |
- |
- |
- |
- |
- |
- |
0.2 |
0.9 |
Average snowfall over 12 years |
in |
0.4 |
0.3 |
0.1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average number of clear days over 83 years |
days |
78 |
6 |
5 |
5 |
6 |
6 |
7 |
7 |
5 |
9 |
8 |
6 |
7 |
Heating degree days over 30 years |
days |
4496 |
527 |
440 |
484 |
444 |
378 |
285 |
248 |
223 |
234 |
319 |
399 |
515 |
Average possibility of sunshine over 83 years |
% |
51 |
43 |
46 |
52 |
57 |
58 |
59 |
55 |
50 |
54 |
50 |
44 |
41 |
Average number of cloudy days over 83 years |
days |
188 |
19 |
17 |
18 |
16 |
15 |
13 |
13 |
15 |
13 |
15 |
17 |
18 |
Average number of partly cloudy days over 83 years |
days |
99 |
6 |
6 |
8 |
8 |
10 |
10 |
11 |
11 |
8 |
8 |
7 |
6 |
Average number of days below 45°F over 54 years |
days |
134 |
24 |
19 |
21 |
16 |
7 |
1 |
- |
- |
1 |
7 |
16 |
22 |
Average number of days above 75°F over 54 years |
days |
2 |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
1 |
- |
- |