Average temperature over 47 years |
°F |
10 |
-11 |
-16 |
-13 |
- |
19 |
34 |
39 |
37 |
31 |
15 |
- |
-9 |
Average high temperature over 47 years |
°F |
15 |
-7 |
-11 |
-7 |
6 |
24 |
37 |
44 |
43 |
34 |
19 |
3 |
-5 |
Average low temperature over 47 years |
°F |
3 |
-18 |
-23 |
-20 |
-7 |
15 |
30 |
34 |
33 |
26 |
10 |
-5 |
-16 |
Highest recorded temperature over 47 years |
°F |
78 |
36 |
36 |
33 |
37 |
46 |
71 |
78 |
75 |
62 |
43 |
37 |
32 |
Lowest recorded temperature over 47 years |
°F |
-54 |
-52 |
-54 |
-52 |
-38 |
-18 |
3 |
24 |
21 |
1 |
-32 |
-38 |
-50 |
Average number of rainy days over 73 years |
days |
78 |
4 |
4 |
4 |
4 |
4 |
5 |
9 |
11 |
11 |
11 |
6 |
5 |
Average precipitation over 47 years |
in |
4.6 |
0.2 |
0.2 |
0.1 |
0.2 |
0.1 |
0.3 |
0.9 |
1.0 |
0.6 |
0.5 |
0.3 |
0.2 |
Average dew point over 30 years |
°F |
6 |
-20 |
-23 |
-20 |
-5 |
17 |
31 |
36 |
35 |
28 |
12 |
-7 |
-18 |
Most recorded rainfall over 47 years |
in |
9.8 |
1.0 |
0.8 |
1.5 |
1.4 |
0.5 |
1.1 |
3.2 |
2.8 |
1.6 |
1.4 |
1.1 |
0.8 |
Least recorded rainfall over 47 years |
in |
1.8 |
- |
- |
- |
- |
- |
- |
0.1 |
0.1 |
- |
0.1 |
- |
- |
Average number of days with thunderstorms over 47 years |
days |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average number of days with fog over 47 years |
days |
210 |
14 |
14 |
13 |
14 |
20 |
22 |
23 |
24 |
20 |
17 |
15 |
14 |
Average morning relative humidity over 31 years |
% |
81 |
68 |
67 |
66 |
74 |
87 |
91 |
92 |
94 |
92 |
85 |
77 |
70 |
Average evening relative humidity over 31 years |
% |
78 |
68 |
67 |
67 |
73 |
83 |
86 |
85 |
87 |
87 |
84 |
77 |
70 |
Average wind speed over 30 years |
mph |
13.0 |
13.0 |
12.0 |
13.0 |
13.0 |
14.0 |
13.0 |
13.0 |
14.0 |
14.0 |
16.0 |
14.0 |
13.0 |
Average number of days below 32°F over 47 years |
days |
321 |
31 |
28 |
31 |
30 |
31 |
24 |
14 |
15 |
25 |
31 |
30 |
31 |
Average number of days below 0°F over 47 years |
days |
170 |
29 |
27 |
30 |
23 |
3 |
- |
- |
- |
- |
7 |
22 |
29 |
Average snowfall over 73 years |
in |
28.0 |
2.2 |
2.1 |
1.8 |
2.1 |
1.8 |
0.6 |
0.5 |
0.7 |
3.6 |
6.7 |
3.4 |
2.5 |
Average number of days above 65°F over 47 years |
days |
1 |
- |
- |
- |
- |
- |
- |
1 |
- |
- |
- |
- |
- |
Average number of clear days over 50 years |
days |
65 |
5 |
12 |
14 |
11 |
3 |
4 |
4 |
1 |
1 |
2 |
5 |
3 |
Average snow cover over 50 years |
in |
6.0 |
9.0 |
10.0 |
11.0 |
11.0 |
6.0 |
1.0 |
- |
- |
1.0 |
4.0 |
7.0 |
8.0 |
Heating degree days over 30 years |
days |
20226 |
2430 |
2318 |
2483 |
2016 |
1417 |
930 |
797 |
840 |
1035 |
1597 |
2001 |
2362 |
Cooling degree days over 30 years |
days |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
Average number of cloudy days over 50 years |
days |
187 |
3 |
11 |
10 |
12 |
23 |
20 |
20 |
26 |
26 |
25 |
11 |
- |
Average number of partly cloudy days over 50 years |
days |
52 |
2 |
5 |
7 |
7 |
5 |
6 |
7 |
4 |
3 |
4 |
3 |
- |
Average number of days above 50°F over 47 years |
days |
19 |
- |
- |
- |
- |
- |
2 |
9 |
6 |
1 |
- |
- |
- |