January Normals for Temperature, Precipitation and Snowfall for Chicago

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July 24-25, 2025: Severe Weather and Flash Flooding

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

January Normals for Chicago for Temperature, Precipitation and Snowfall

Day of Month	High	Low	Average	HDD	CDD	Precipitation	Snowfall
1	32.9	20.8	26.8	38.2	0	0.07	0.3
2	32.7	20.6	26.7	38.3	0	0.06	0.3
3	32.6	20.4	26.5	38.5	0	0.07	0.3
4	32.4	20.2	26.3	38.7	0	0.07	0.3
5	32.3	20	26.2	38.8	0	0.07	0.3
6	32.1	19.9	26	39	0	0.06	0.3
7	32	19.7	25.8	39.2	0	0.07	0.4
8	31.9	19.5	25.7	39.3	0	0.07	0.3
9	31.8	19.3	25.6	39.4	0	0.07	0.4
10	31.7	19.2	25.4	39.6	0	0.07	0.3
11	31.6	19	25.3	39.7	0	0.07	0.3
12	31.5	18.9	25.2	39.8	0	0.07	0.4
13	31.4	18.7	25.1	39.9	0	0.06	0.3
14	31.3	18.6	25	40	0	0.07	0.4
15	31.2	18.5	24.9	40.1	0	0.06	0.4
16	31.2	18.4	24.8	40.2	0	0.07	0.3
17	31.1	18.3	24.7	40.3	0	0.07	0.4
18	31.1	18.2	24.6	40.3	0	0.06	0.4
19	31.1	18.1	24.6	40.4	0	0.07	0.4
20	31.1	18	24.6	40.4	0	0.06	0.4
21	31.1	18	24.5	40.5	0	0.06	0.4
22	31.1	18	24.5	40.5	0	0.06	0.4
23	31.1	17.9	24.5	40.5	0	0.07	0.4
24	31.2	17.9	24.5	40.4	0	0.06	0.4
25	31.2	17.9	24.6	40.4	0	0.06	0.4
26	31.3	18	24.6	40.4	0	0.06	0.4
27	31.4	18	24.7	40.3	0	0.05	0.4
28	31.4	18.1	24.8	40.2	0	0.06	0.4
29	31.6	18.1	24.8	40.1	0	0.06	0.4
30	31.7	18.2	25	40	0	0.05	0.4
31	31.8	18.3	25.1	39.9	0	0.06	0.4

MONTH	31.6	18.8	25.2	1233.3	0	1.99	11.3

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