Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

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

October Normals for Chicago for Temperature, Precipitation and Snowfall

Day of Month	High	Low	Average	HDD	CDD	Precipitation	Snowfall
1	69.4	50.9	60.1	6.3	1.4	0.11	0
2	68.9	50.5	59.7	6.6	1.3	0.12	0
3	68.5	50.1	59.3	6.9	1.2	0.11	0
4	68	49.7	58.9	7.2	1.1	0.11	0
5	67.6	49.3	58.5	7.6	1	0.11	0
6	67.2	48.9	58.1	7.9	1	0.11	0
7	66.7	48.6	57.6	8.3	0.9	0.11	0
8	66.3	48.2	57.2	8.6	0.9	0.11	0
9	65.8	47.8	56.8	9	0.8	0.11	0
10	65.4	47.5	56.4	9.3	0.7	0.12	0
11	65	47.1	56	9.6	0.7	0.11	0
12	64.5	46.8	55.6	9.9	0.6	0.12	0
13	64.1	46.4	55.2	10.3	0.5	0.11	0
14	63.6	46.1	54.8	10.6	0.4	0.11	0
15	63.2	45.7	54.4	10.9	0.4	0.12	0
16	62.7	45.4	54	11.3	0.3	0.11	0
17	62.3	45	53.7	11.6	0.3	0.11	0
18	61.8	44.7	53.3	12	0.3	0.12	0
19	61.4	44.3	52.9	12.4	0.2	0.11	0
20	60.9	44	52.5	12.8	0.2	0.1	0
21	60.5	43.6	52.1	13.1	0.2	0.11	0.1
22	60	43.3	51.7	13.5	0.2	0.11	0
23	59.6	42.9	51.3	13.9	0.2	0.11	0
24	59.1	42.6	50.9	14.3	0.1	0.11	0
25	58.7	42.2	50.5	14.7	0.1	0.11	0
26	58.2	41.9	50	15.1	0.1	0.11	0
27	57.8	41.5	49.6	15.5	0.1	0.11	0
28	57.3	41.2	49.2	15.8	0.1	0.11	0
29	56.8	40.8	48.8	16.3	0.1	0.11	0.1
30	56.4	40.4	48.4	16.7	0.1	0.1	0
31	55.9	40.1	48	17.1	0.1	0.1	0

MONTH	62.7	45.4	54	355.1	15.6	3.43	0.2

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Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

October Normals for Temperature, Precipitation and Snowfall for Chicago, IL