HAMweather Climate Center - August Normals for Chicago, IL

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Climatological Normals

Day	Temperatures (°F)			Precipitation (in)	Degree Days
Day	Min	Max	Avg	Precipitation (in)	Heating	Cooling
1	64	83	73	0.14	0	9
2	63	83	73	0.14	0	9
3	63	83	73	0.15	0	9
4	63	83	73	0.15	0	8
5	63	83	73	0.15	0	8
6	63	83	73	0.15	0	8
7	63	83	73	0.16	0	8
8	63	83	73	0.16	0	8
9	63	82	73	0.16	0	8
10	63	82	73	0.16	0	8
11	63	82	72	0.16	0	8
12	63	82	72	0.16	0	8
13	62	82	72	0.16	0	8
14	62	82	72	0.16	1	8
15	62	82	72	0.16	1	8
16	62	81	72	0.17	1	7
17	62	81	72	0.17	1	7
18	62	81	71	0.16	1	7
19	62	81	71	0.16	1	7
20	61	81	71	0.16	1	7
21	61	81	71	0.16	1	7
22	61	80	71	0.16	1	6
23	61	80	71	0.16	1	6
24	61	80	70	0.16	1	6
25	60	80	70	0.16	1	6
26	60	80	70	0.16	1	6
27	60	80	70	0.15	1	6
28	60	79	69	0.15	1	5
29	59	79	69	0.15	1	5
30	59	79	69	0.15	1	5
31	59	79	69	0.14	1	5
Month	62	81	72	4.84	18	221

Data Controls
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Normal High Temperatures Normal Low Temperatures Normal Mean Temperatures Normal Precipitation		- Forecast - Past Weather