CLIMATE CHARTS
Chicago Ohare Intl Ap, Illinois
Latitude: 41.9950 Longitude: -87.9336
Elevation: 658.1 feet (200.6 meters)
Monthly Data Table for Chicago Ohare Intl Ap, Illinois
Imperial Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°F |
31.0 |
35.3 |
46.6 |
59.0 |
70.0 |
79.7 |
84.1 |
81.9 |
74.8 |
62.3 |
48.2 |
34.8 |
Minimum Temperature |
°F |
16.5 |
20.1 |
29.2 |
38.8 |
48.3 |
58.1 |
63.9 |
62.9 |
54.3 |
42.8 |
32.4 |
20.7 |
Heating Degree Days |
°F |
1279 |
1044 |
841 |
492 |
225 |
48 |
4 |
9 |
105 |
397 |
741 |
1155 |
Cooling Degree Days |
°F |
0 |
0 |
1 |
9 |
44 |
165 |
283 |
238 |
92 |
11 |
0 |
0 |
Precipitation |
in. |
1.73 |
1.79 |
2.50 |
3.38 |
3.68 |
3.45 |
3.70 |
4.90 |
3.21 |
3.15 |
3.15 |
2.25 |
Metric Units
Statistic |
Units |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Maximum Temperature |
°C |
-0.6 |
1.8 |
8.1 |
15.0 |
21.1 |
26.5 |
28.9 |
27.7 |
23.8 |
16.8 |
9.0 |
1.6 |
Minimum Temperature |
°C |
-8.6 |
-6.6 |
-1.6 |
3.8 |
9.1 |
14.5 |
17.7 |
17.2 |
12.4 |
6.0 |
0.2 |
-6.3 |
Heating Degree Days |
°C |
711 |
580 |
467 |
273 |
125 |
27 |
2 |
5 |
58 |
221 |
412 |
642 |
Cooling Degree Days |
°C |
0 |
0 |
1 |
5 |
24 |
92 |
157 |
132 |
51 |
6 |
0 |
0 |
Precipitation |
cm. |
4.39 |
4.55 |
6.35 |
8.59 |
9.35 |
8.76 |
9.40 |
12.45 |
8.15 |
8.00 |
8.00 |
5.71 |