Average temperature over 43 years |
°F |
48 |
26 |
26 |
35 |
46 |
55 |
66 |
71 |
69 |
62 |
53 |
42 |
32 |
Average high temperature over 43 years |
°F |
57 |
33 |
34 |
43 |
53 |
64 |
75 |
78 |
78 |
71 |
60 |
48 |
37 |
Average low temperature over 43 years |
°F |
41 |
19 |
19 |
26 |
37 |
46 |
57 |
62 |
60 |
53 |
44 |
36 |
26 |
Highest recorded temperature over 43 years |
°F |
100 |
71 |
66 |
80 |
89 |
89 |
100 |
98 |
93 |
98 |
87 |
80 |
75 |
Lowest recorded temperature over 43 years |
°F |
-18 |
-18 |
-16 |
-9 |
12 |
26 |
32 |
44 |
37 |
33 |
24 |
6 |
-5 |
Average number of rainy days over 40 years |
days |
165 |
18 |
15 |
15 |
14 |
12 |
10 |
10 |
11 |
11 |
13 |
17 |
19 |
Average number of days above 90°F over 43 years |
days |
3 |
- |
- |
- |
- |
- |
1 |
1 |
1 |
- |
- |
- |
- |
Average precipitation over 43 years |
in |
40.5 |
2.5 |
2.3 |
3.1 |
3.3 |
3.4 |
3.8 |
3.3 |
3.9 |
4.1 |
3.6 |
4.0 |
3.4 |
Average dew point over 48 years |
°F |
39 |
19 |
19 |
26 |
35 |
44 |
55 |
60 |
60 |
53 |
43 |
33 |
24 |
Most recorded rainfall over 43 years |
in |
61.7 |
5.5 |
5.7 |
6.8 |
7.1 |
7.8 |
7.7 |
7.7 |
11.1 |
10.6 |
9.9 |
10.4 |
6.9 |
Least recorded rainfall over 43 years |
in |
28.1 |
0.9 |
0.6 |
0.6 |
1.6 |
1.0 |
0.8 |
0.6 |
1.0 |
1.3 |
0.4 |
1.5 |
1.4 |
Average number of days with thunderstorms over 42 years |
days |
36 |
- |
- |
2 |
3 |
4 |
6 |
7 |
7 |
4 |
2 |
1 |
- |
Average number of days with fog over 42 years |
days |
140 |
12 |
12 |
14 |
12 |
12 |
11 |
10 |
11 |
11 |
10 |
12 |
13 |
Average morning relative humidity over 48 years |
% |
78 |
78 |
79 |
78 |
75 |
75 |
78 |
79 |
82 |
81 |
77 |
76 |
77 |
Average evening relative humidity over 48 years |
% |
65 |
73 |
72 |
67 |
60 |
58 |
60 |
61 |
62 |
63 |
64 |
69 |
73 |
Average wind speed over 48 years |
mph |
11.0 |
13.0 |
13.0 |
13.0 |
13.0 |
9.0 |
9.0 |
8.0 |
8.0 |
9.0 |
10.0 |
12.0 |
13.0 |
Average number of days below 32°F over 43 years |
days |
124 |
28 |
25 |
23 |
11 |
1 |
- |
- |
- |
- |
1 |
11 |
24 |
Average number of days below 0°F over 30 years |
days |
2.9 |
1.3 |
1.3 |
0.1 |
- |
- |
- |
- |
- |
- |
- |
- |
0.2 |
Average snowfall over 39 years |
in |
85.5 |
22.8 |
16.1 |
10.4 |
2.7 |
- |
- |
- |
- |
- |
0.3 |
10.3 |
22.9 |
Average number of days above 65°F over 43 years |
days |
152 |
- |
- |
2 |
7 |
16 |
27 |
31 |
31 |
24 |
11 |
2 |
- |
Average number of clear days over 38 years |
days |
63 |
2 |
2 |
5 |
6 |
7 |
8 |
8 |
9 |
7 |
6 |
3 |
1 |
Most rain reported in a day over 71 years |
in |
10.4 |
1.3 |
2.1 |
1.8 |
3.0 |
2.2 |
4.6 |
10.4 |
3.3 |
4.7 |
4.4 |
2.6 |
2.1 |
Most rain reported in a month over 71 years |
in |
61.7 |
6.1 |
5.7 |
6.8 |
8.9 |
7.8 |
8.4 |
13.3 |
11.1 |
10.7 |
9.9 |
10.4 |
7.0 |
Least rain reported in a month over 71 years |
in |
23.9 |
0.9 |
0.6 |
0.6 |
1.2 |
0.6 |
0.8 |
0.7 |
0.3 |
1.3 |
0.3 |
1.5 |
0.7 |
Heating degree days over 30 years |
days |
6279 |
1228 |
1098 |
902 |
567 |
268 |
52 |
- |
12 |
89 |
370 |
654 |
1039 |
Cooling degree days over 30 years |
days |
550 |
- |
- |
- |
- |
17 |
97 |
199 |
171 |
59 |
7 |
- |
- |
Average number of cloudy days over 38 years |
days |
205 |
25 |
20 |
19 |
16 |
14 |
11 |
10 |
11 |
13 |
17 |
23 |
26 |
Average number of partly cloudy days over 38 years |
days |
97 |
4 |
6 |
7 |
8 |
10 |
11 |
13 |
11 |
10 |
8 |
4 |
4 |
Average number of days below 5°F over 43 years |
days |
9 |
4 |
4 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
1 |
Most snow reported in a month over 71 years |
in |
141.6 |
62.4 |
36.9 |
31.8 |
17.2 |
0.4 |
- |
- |
- |
- |
4.6 |
36.3 |
66.9 |