USGS CD-ROM: Current Year Discharge

05534500 NORTH BRANCH CHICAGO RIVER AT DEERFIELD, IL

LOCATION.--Lat 42°09'10", long 87°49'07", in SW¼SE¼ sec.34, T.43 N., R.12 E., Lake County, Hydrologic Unit 07120003, on right bank at upstream side of bridge on Lake-Cook Road, 1.7 mi southeast of Deerfield, 5.7 mi upstream from Skokie River, and at mile 64.7.

DRAINAGE AREA.--19.7 mi².

PERIOD OF RECORD.--August 1952 to current year.

REVISED RECORDS.--WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 638.88 ft above sea level (Cook County Highway Department bench mark).

REMARKS.--Records good except those for estimated daily discharges, which are poor. Gage-height telemeter at station.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	.89	3.4	13	6.9	21	15	109	24	2.7	33	.66	1.1
2	.98	2.8	11	7.7	57	14	84	19	2.2	21	.58	.91
3	1.1	2.3	12	27	50	14	57	14	1.9	35	.63	1.2
4	1.3	2.2	14	66	38	13	36	16	1.5	78	7.8	.84
5	1.2	2.1	11	74	30	12	25	17	2.3	32	7.2	.97

6	1.2	7.2	9.7	80	22	11	20	17	2.4	22	3.9	.64
7	1.1	7.6	7.2	99	20	10	23	130	1.9	39	10	17
8	1.2	5.3	6.1	83	17	85	124	138	1.6	21	13	9.7
9	1.6	4.3	5.9	87	15	122	141	80	5.9	14	6.0	3.4
10	2.5	3.7	19	58	14	79	100	47	4.2	9.8	2.8	2.2

11	1.3	3.0	32	44	58	54	66	31	15	7.0	2.0	1.7
12	.94	2.4	23	25	109	e40	42	23	18	5.0	1.5	1.5
13	3.3	2.2	16	16	68	29	27	52	14	3.6	1.1	1.3
14	4.0	2.9	12	13	45	22	24	39	9.2	2.9	.84	4.9
15	2.4	9.9	10	11	31	20	23	26	7.3	2.5	.80	17

16	2.0	6.7	11	e9.2	25	18	77	20	5.2	2.5	1.0	10
17	1.8	6.1	11	e8.0	50	42	88	13	3.8	1.6	.92	5.2
18	1.6	5.4	9.9	e7.6	80	e130	73	9.7	12	1.1	.78	3.7
19	1.4	5.7	8.9	e7.0	51	e160	44	9.8	29	3.1	.55	2.6
20	1.2	5.7	8.1	e6.8	36	e100	32	10	11	1.6	1.5	7.1

21	1.1	9.5	7.3	6.8	27	e60	51	7.0	7.5	1.5	.86	9.4
22	1.3	14	10	6.9	22	e40	44	5.0	6.0	.97	.65	4.9
23	1.6	11	8.6	7.2	18	e22	29	4.5	4.7	2.1	1.5	3.0
24	1.9	7.8	8.0	6.9	18	23	21	12	3.6	1.8	1.0	2.6
25	2.3	6.2	18	6.0	16	20	17	5.9	6.2	1.2	13	1.7

26	10	6.1	17	6.0	14	18	36	4.2	145	.93	5.3	1.2
27	30	8.8	12	6.6	17	15	49	3.3	121	.81	1.6	2.1
28	9.4	13	9.4	6.9	17	16	30	3.1	138	.84	7.2	2.1
29	6.4	12	8.7	9.9	---	13	27	3.2	97	.77	5.7	1.2
30	4.8	15	7.6	12	---	12	24	4.4	54	.60	2.3	1.7

31	4.3	---	6.9	11	---	65	---	3.3	---	.57	1.4	---

TOTAL	106.11	194.3	364.3	822.4	986	1294	1543	791.4	734.1	347.79	104.07	122.86
MEAN	3.42	6.48	11.8	26.5	35.2	41.7	51.4	25.5	24.5	11.2	3.36	4.10
MAX	30	15	32	99	109	160	141	138	145	78	13	17
MIN	.89	2.1	5.9	6.0	14	10	17	3.1	1.5	.57	.55	.64
CFSM	.17	.33	.60	1.35	1.79	2.12	2.61	1.30	1.24	.57	.17	.21
IN.	.20	.37	.69	1.55	1.86	2.44	2.91	1.49	1.39	.66	.20	.23

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1953 - 1998, BY WATER YEAR (WY)
MEAN	6.61	13.3	15.0	12.0	18.7	35.2	36.0	19.7	14.7	9.40	8.59	8.40
MAX	42.8	76.3	95.9	62.8	64.2	153	101	108	64.3	59.7	59.9	70.5
(WY)	1987	1986	1983	1974	1997	1979	1965	1996	1996	1982	1990	1972
MIN	.094	.16	.048	.000	.082	3.89	6.40	2.16	.79	.44	.22	.023
(WY)	1961	1963	1963	1963	1963	1968	1986	1992	1963	1965	1966	1966

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1953 - 1998
ANNUAL TOTAL	5664.51		7410.33
ANNUAL MEAN	15.5		20.3		16.4
HIGHEST ANNUAL MEAN					32.2	1974
LOWEST ANNUAL MEAN					2.32	1963
HIGHEST DAILY MEAN	489	Feb 21	160 A	Mar 19	601	Dec 3 1982
LOWEST DAILY MEAN	.64	Aug 9	.55	Aug 19	.00	B
ANNUAL SEVEN-DAY MINIMUM	.75	Aug 4	.66	Jul 28	.00	Oct 5 1953
INSTANTANEOUS PEAK FLOW			239	Mar 19	933	Aug 14 1987
INSTANTANEOUS PEAK STAGE			8.34 C	Mar 19	11.52	Aug 14 1987
INSTANTANEOUS LOW FLOW			.45	Aug 3
ANNUAL RUNOFF (CFSM)	.79		1.03		.83
ANNUAL RUNOFF (INCHES)	10.70		13.99		11.33
10 PERCENT EXCEEDS	29		57		40
50 PERCENT EXCEEDS	7.7		9.4		4.7
90 PERCENT EXCEEDS	1.4		1.2		.30

A - Estimated.
B - At times in most years.
C - From floodmark.