USGS CD-ROM: Current Year Discharge

05536255 BUTTERFIELD CREEK AT FLOSSMOOR, IL

LOCATION.--Lat 41°32'25", long 87°38'55", in NE¼NW¼ sec.8, T.35 N., R.14 E., Cook County, Hydrologic Unit 07120003, on left bank at downstream side of Riegel Road Bridge at Homewood city limits, 0.1 mi north of Holbrook Road, 0.8 mi east of Flossmoor, and at mile 1.2.

DRAINAGE AREA.--23.5 mi².

PERIOD OF RECORD.--May 1948 to current year. Prior to October 1974, records published with those for streams in the St. Lawrence River Basin (WSP 1307, 1727, 1911, 2111, WDR IL 1971-74).

REVISED RECORDS.--WSP 1437: 1948(M), 1953, 1955. WDR IL-75-1: Drainage area. WDR IL-81-2: 1955(M), 1957(M), 1968(M), 1974(M).

GAGE.--Water-stage recorder. Datum of gage is 616.80 ft above sea level. Prior to Sept. 9, 1948, nonrecording gage at same site and datum.

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	.71	3.3	4.2	4.5	24	9.2	102	40	1.5	11	.76	1.4
2	.62	1.6	2.2	4.1	53	8.1	62	25	1.4	6.7	.62	1.1
3	.59	1.3	1.6	15	43	8.4	37	19	3.0	11	.66	5.3
4	3.6	1.6	1.2	147	29	15	25	16	2.7	128	323	2.2
5	2.1	.69	.91	130	21	14	20	17	1.4	31	263	1.4

6	.96	3.4	.65	115	16	12	17	56	1.5	15	72	1.1
7	.76	1.7	.55	69	13	10	16	610	1.3	244	61	103
8	.60	1.1	.52	137	12	91	42	357	1.3	121	47	24
9	1.9	.66	.50	117	10	191	42	125	18	37	23	13
10	1.8	.49	2.6	60	11	106	30	69	6.2	20	15	8.9

11	.70	.79	11	41	91	70	21	46	113	15	9.4	5.1
12	.74	1.1	6.1	23	92	49	17	34	77	11	5.9	3.4
13	2.9	1.2	3.6	e18	43	36	21	24	23	7.2	4.8	2.4
14	3.7	1.3	2.4	e13	27	33	27	17	14	5.2	4.1	1.6
15	.95	4.5	2.0	e11	20	30	18	13	17	3.8	3.7	1.5

16	.53	4.8	2.6	e8.8	21	29	18	11	9.0	3.2	3.2	3.7
17	.35	1.6	4.0	e7.5	87	111	17	8.0	6.3	2.5	2.6	1.5
18	.30	1.1	3.6	e6.4	119	442	14	5.8	6.0	2.2	7.6	1.3
19	.30	.84	4.3	e5.8	58	204	12	4.3	13	17	5.5	1.1
20	.33	.92	4.3	e5.2	38	97	24	3.7	5.8	9.2	3.5	1.2

21	.39	.71	3.4	e4.9	29	65	164	3.7	3.8	4.7	2.5	2.9
22	.42	.64	12	e5.1	22	46	74	3.7	2.9	18	1.8	2.2
23	.30	.54	21	e5.4	18	35	39	3.2	2.6	23	1.5	1.2
24	.82	.45	20	e4.8	19	26	25	3.2	2.1	12	17	.85
25	1.7	.52	51	4.5	15	22	20	3.3	1.5	4.1	13	.68

26	10	.78	32	4.3	13	20	25	2.8	211	2.3	4.5	.72
27	48	1.5	18	4.1	15	16	27	2.2	73	1.8	2.8	.72
28	10	7.3	12	4.9	11	40	17	1.8	41	1.3	10	.72
29	3.7	13	8.9	9.7	---	26	63	1.8	21	1.2	6.5	.72
30	1.9	9.0	7.0	11	---	19	47	1.9	21	1.1	3.3	3.9

31	.96	---	6.2	11	---	71	---	1.6	---	1.2	1.9	---

TOTAL	102.63	68.43	250.33	1008.0	970	1951.7	1083	1530.0	702.3	771.7	921.14	198.81
MEAN	3.31	2.28	8.08	32.5	34.6	63.0	36.1	49.4	23.4	24.9	29.7	6.63
MAX	48	13	51	147	119	442	164	610	211	244	323	103
MIN	.30	.45	.50	4.1	10	8.1	12	1.6	1.3	1.1	.62	.68
CFSM	.14	.10	.34	1.38	1.47	2.68	1.54	2.10	1.00	1.06	1.26	.28
IN.	.16	.11	.40	1.60	1.54	3.09	1.71	2.42	1.11	1.22	1.46	.31

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1948 - 1998, BY WATER YEAR (WY)
MEAN	7.70	14.2	17.4	17.5	21.9	34.5	33.0	26.2	21.0	12.4	8.24	8.53
MAX	76.1	96.7	105	73.7	88.4	120	97.7	95.6	119	85.9	60.0	77.1
(WY)	1955	1991	1983	1969	1997	1979	1970	1996	1993	1957	1968	1961
MIN	.27	.20	.073	.032	.38	4.42	3.57	2.49	1.14	.55	.32	.25
(WY)	1953	1954	1977	1977	1978	1981	1986	1992	1988	1988	1948	1953

SUMMARY STATISTICS	FOR 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1948 - 1998
ANNUAL TOTAL	5939.04		9558.04
ANNUAL MEAN	16.3		26.2		18.6
HIGHEST ANNUAL MEAN					42.3	1993
LOWEST ANNUAL MEAN					4.82	1963
HIGHEST DAILY MEAN	831	Feb 21	610	May 7	1500	Jul 13 1957
LOWEST DAILY MEAN	.26	Sep 14	.30	Oct 18, 19, 23	.00	A
ANNUAL SEVEN-DAY MINIMUM	.34	Oct 17	.34	Oct 17	.00	Aug 8 1975
INSTANTANEOUS PEAK FLOW			707	May 7	2220	Jul 18 1996
INSTANTANEOUS PEAK STAGE			9.81	May 7	12.59	Jul 18 1996
INSTANTANEOUS LOW FLOW			.27	Oct 18-20, 23
ANNUAL RUNOFF (CFSM)	.69		1.11		.79
ANNUAL RUNOFF (INCHES)	9.40		15.13		10.75
10 PERCENT EXCEEDS	32		69		42
50 PERCENT EXCEEDS	4.3		7.5		4.5
90 PERCENT EXCEEDS	.54		.79		.45

A - At times in many years.