AUGUST CHICAGO NORMALS FOR TEMPERATURE, PRECIPITATION, SNOWFALL (1981-2010)

JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC

Day of Month	High	Low	Average	HDD	CDD	Precipitation
1	83	64	74	0	9	0.17
2	83	64	74	0	9	0.16
3	83	64	74	0	9	0.16
4	83	64	74	0	9	0.16
5	83	64	73	0	9	0.16
6	83	64	73	0	9	0.16
7	83	64	73	0	9	0.15
8	83	64	73	0	8	0.16
9	83	64	73	0	8	0.17
10	83	64	73	0	8	0.16
11	82	64	73	0	8	0.17
12	82	64	73	0	8	0.17
13	82	64	73	0	8	0.17
14	82	63	73	0	8	0.17
15	82	63	73	0	8	0.18
16	82	63	73	0	8	0.17
17	82	63	73	0	8	0.17
18	82	63	72	0	8	0.17
19	82	63	72	0	8	0.16
20	82	63	72	0	7	0.16
21	82	63	72	0	7	0.15
22	82	63	72	0	7	0.15
23	81	62	72	0	7	0.15
24	81	62	72	0	7	0.15
25	81	62	72	0	7	0.15
26	81	62	71	0	7	0.15
27	81	62	71	0	7	0.14
28	81	61	71	1	6	0.15
29	80	61	71	1	6	0.13
30	80	61	70	1	6	0.14
31	80	61	70	1	6	0.14
MONTH	81.9	62.9	72.4	9	238	4.90

HDD = A Heating Degree Day represents the number of degree(s) that the mean temperature for the day is below 65 degrees during a day.

CDD = A Cooling Degree Day represents the number of degree(s) that the mean temperature for the day is above 65 degrees during a day.

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