MARCH 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	Snowfall
1	40	25	32	33	0	0.08	0.2
2	41	25	33	32	0	0.07	0.3
3	41	25	33	32	0	0.08	0.2
4	42	26	34	31	0	0.08	0.3
5	42	26	34	31	0	0.08	0.2
6	43	26	34	31	0	0.08	0.2
7	43	26	35	30	0	0.08	0.3
8	43	27	35	30	0	0.07	0.2
9	44	27	35	30	0	0.08	0.3
10	44	27	36	29	0	0.07	0.2
11	45	28	36	29	0	0.08	0.2
12	45	28	36	29	0	0.07	0.2
13	45	28	37	28	0	0.07	0.2
14	46	29	37	28	0	0.07	0.2
15	46	29	38	27	0	0.08	0.2
16	47	29	38	27	0	0.08	0.2
17	47	30	38	27	0	0.08	0.2
18	47	30	39	26	0	0.08	0.1
19	48	30	39	26	0	0.08	0.2
20	48	31	39	26	0	0.08	0.1
21	49	31	40	25	0	0.09	0.2
22	49	31	40	25	0	0.09	0.1
23	50	31	40	25	0	0.08	0.2
24	50	32	41	24	0	0.08	0.1
25	50	32	41	24	0	0.08	0.1
26	51	32	42	24	0	0.08	0.1
27	51	33	42	23	0	0.09	0.2
28	52	33	42	23	0	0.09	0.1
29	52	33	42	23	0	0.09	0.1
30	52	34	43	22	0	0.09	0.1
31	53	34	43	22	0	0.10	0.1
MONTH	46.6	29.2	37.9	841	1	2.50	5.6

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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