National Weather Service United States Department of Commerce

 

 
CHICAGO NORMALS (1991-2020)
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

 

August Normals for Chicago for Temperature and Precipitation

 

Day of Month High Low Average HDD CDD Precipitation
1 83.9 66.5 75.2 0 10.2 0.15
2 83.8 66.4 75.1 0.1 10.2 0.15
3 83.8 66.4 75.1 0.1 10.1 0.14
4 83.7 66.3 75 0.1 10.1 0.14
5 83.6 66.3 75 0.1 10 0.14
6 83.5 66.2 74.9 0.1 10 0.14
7 83.5 66.2 74.8 0.1 9.9 0.12
8 83.4 66.1 74.7 0.1 9.8 0.13
9 83.3 66 74.7 0.1 9.8 0.14
10 83.2 66 74.6 0.1 9.7 0.13
11 83.1 65.9 74.5 0.1 9.6 0.14
12 83.1 65.8 74.4 0.1 9.5 0.14
13 83 65.7 74.3 0.1 9.4 0.14
14 82.9 65.6 74.2 0.1 9.3 0.15
15 82.8 65.5 74.1 0.1 9.2 0.14
16 82.7 65.4 74 0.1 9.1 0.15
17 82.6 65.3 73.9 0.1 9 0.15
18 82.5 65.2 73.8 0.1 8.9 0.14
19 82.4 65 73.7 0.1 8.8 0.13
20 82.2 64.9 73.6 0.1 8.6 0.14
21 82.1 64.7 73.4 0.1 8.5 0.13
22 82 64.6 73.3 0.1 8.4 0.13
23 81.8 64.4 73.1 0.1 8.2 0.13
24 81.7 64.2 73 0.1 8.1 0.13
25 81.5 64 72.8 0.2 7.9 0.13
26 81.4 63.8 72.6 0.2 7.8 0.13
27 81.2 63.6 72.4 0.2 7.6 0.13
28 81 63.4 72.2 0.3 7.5 0.13
29 80.8 63.1 72 0.3 7.3 0.13
30 80.6 62.9 71.8 0.4 7.1 0.14
31 80.4 62.6 71.5 0.4 6.9 0.14
             
MONTH 82.5 65.1 73.8 4.3 276.5 4.25