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Weather Averages for
Bannockburn, IL
Latitude: 42°5'N,
Longitude: 87°50'W,
Elevation: 199.0 m,
Distance: 4.07 km
Average temperature
over 49 years |
°C |
10 |
-5 |
-2 |
2 |
9 |
15 |
20 |
23 |
22 |
18 |
12 |
4 |
-2 |
Average high temperature
over 49 years |
°C |
14 |
-1 |
1 |
7 |
13 |
20 |
26 |
28 |
27 |
23 |
17 |
8 |
1 |
Average low temperature
over 49 years |
°C |
5 |
-9 |
-7 |
-1 |
3 |
9 |
15 |
17 |
17 |
12 |
6 |
0 |
-6 |
Highest recorded temperature
over 49 years |
°C |
40 |
19 |
22 |
30 |
32 |
34 |
40 |
40 |
39 |
37 |
31 |
25 |
21 |
Lowest recorded temperature
over 49 years |
°C |
-31 |
-31 |
-26 |
-22 |
-11 |
-2 |
1 |
5 |
7 |
0 |
-6 |
-20 |
-28 |
Average number of days above 27°C
over 49 years |
days |
18 |
- |
- |
- |
- |
1 |
4 |
6 |
5 |
1 |
- |
- |
- |
Average precipitation
over 49 years |
cm |
90.2 |
4.8 |
4.1 |
6.9 |
8.9 |
8.6 |
10.2 |
9.7 |
9.1 |
8.4 |
6.3 |
6.9 |
6.1 |
Average dew point
over 40 years |
°C |
3 |
-8 |
-7 |
-3 |
2 |
7 |
13 |
16 |
16 |
12 |
6 |
0 |
-6 |
Most recorded rainfall
over 49 years |
cm |
120.7 |
13.0 |
11.2 |
13.5 |
16.0 |
21.1 |
20.8 |
28.2 |
34.5 |
35.3 |
23.1 |
18.0 |
15.2 |
Least recorded rainfall
over 49 years |
cm |
52.1 |
0.8 |
0.5 |
1.0 |
2.5 |
1.5 |
1.8 |
0.3 |
1.3 |
- |
0.5 |
1.3 |
1.0 |
Average number of days with thunderstorms
over 40 years |
days |
35 |
- |
- |
2 |
4 |
4 |
7 |
6 |
6 |
4 |
1 |
1 |
- |
Average number of days with fog
over 40 years |
days |
147 |
13 |
11 |
13 |
10 |
11 |
11 |
12 |
15 |
13 |
12 |
12 |
14 |
Average morning relative humidity
over 41 years |
% |
76 |
77 |
77 |
77 |
72 |
69 |
71 |
74 |
78 |
79 |
79 |
79 |
79 |
Average evening relative humidity
over 40 years |
% |
61 |
69 |
66 |
61 |
56 |
53 |
55 |
56 |
57 |
58 |
58 |
66 |
70 |
Average wind speed
over 40 years |
km/h |
16.1 |
16.1 |
16.1 |
16.1 |
20.9 |
19.3 |
14.5 |
12.9 |
12.9 |
14.5 |
16.1 |
17.7 |
16.1 |
Average number of days below -1.5°C
over 49 years |
days |
124 |
29 |
25 |
21 |
6 |
- |
- |
- |
- |
- |
3 |
15 |
26 |
Average number of days above 14.5°C
over 49 years |
days |
160 |
- |
- |
3 |
9 |
19 |
27 |
31 |
31 |
25 |
13 |
2 |
- |
Check weather averages for nearby locations (some locations might offer more data):
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