Tracking Storms with Impacts in the Eastern and Northwest U.S. into Friday

A storm will track north of the Great Lakes Friday with widespread rain showers across the Eastern U.S. along and ahead of its cold front. Further south along the front isolated severe thunderstorms are possible. A Pacific storm will continue moving across the Northwest U.S. into Friday with additional low elevation rain, gusty winds, and mountain snow. Read More >

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

May Normals for Chicago for Temperature and Precipitation

Day of Month	High	Low	Average	HDD	CDD	Precipitation
1	65.1	45.6	55.4	10.2	0.6	0.15
2	65.5	46	55.7	9.9	0.6	0.14
3	65.9	46.3	56.1	9.6	0.7	0.15
4	66.2	46.7	56.4	9.3	0.7	0.15
5	66.6	47	56.8	9	0.8	0.14
6	67	47.3	57.2	8.7	0.9	0.14
7	67.3	47.7	57.5	8.5	1	0.15
8	67.7	48	57.8	8.2	1	0.15
9	68.1	48.3	58.2	7.9	1.1	0.15
10	68.4	48.6	58.5	7.7	1.2	0.15
11	68.8	49	58.9	7.4	1.3	0.15
12	69.1	49.3	59.2	7.1	1.4	0.15
13	69.5	49.6	59.6	6.9	1.5	0.16
14	69.9	49.9	59.9	6.7	1.6	0.15
15	70.2	50.3	60.2	6.4	1.7	0.14
16	70.6	50.6	60.6	6.2	1.8	0.15
17	70.9	50.9	60.9	6	1.9	0.15
18	71.2	51.2	61.2	5.8	2	0.14
19	71.6	51.6	61.6	5.6	2.2	0.15
20	71.9	51.9	61.9	5.4	2.3	0.15
21	72.3	52.2	62.3	5.2	2.4	0.15
22	72.6	52.5	62.6	5	2.6	0.15
23	73	52.9	62.9	4.8	2.7	0.14
24	73.3	53.2	63.3	4.6	2.8	0.14
25	73.7	53.5	63.6	4.4	3	0.14
26	74	53.9	63.9	4.1	3.1	0.13
27	74.3	54.2	64.3	3.9	3.2	0.14
28	74.7	54.6	64.6	3.7	3.3	0.14
29	75	54.9	65	3.5	3.5	0.13
30	75.4	55.2	65.3	3.3	3.6	0.13
31	75.7	55.6	65.6	3.1	3.8	0.14

MONTH	70.5	50.6	60.6	198.1	60.3	4.49

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Tracking Storms with Impacts in the Eastern and Northwest U.S. into Friday

May Normals for Temperature and Precipitation for Chicago