05438500 DATA: Discharge Tables, 1999

Station list Available data
ROCK RIVER BASIN

05438500 KISHWAUKEE RIVER AT BELVIDERE, IL

LOCATION.--Lat 42°15'22", long 88°51'50", in SE1/4SE1/4 sec.27, T.44 N., R.3 E., Boone County, Hydrologic Unit 07090006, on left bank at Belvidere sewage-treatment plant, 1.3 mi downstream from bridge on State Street in Belvidere, 3.0 mi downstream from Piscasaw Creek, and at mile 21.9.

DRAINAGE AREA.--538 mi².

PERIOD OF RECORD.--October 1939 to current year.

REVISED RECORDS.--WSP 1175: 1946. WSP 1508: 1940, 1942-43, 1947(M). WSP 1728: 1940(M). WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 738.34 ft above sea level (U.S. Army Corps of Engineers bench mark). Sept. 29, 1939, to Sept. 30, 1942, nonrecording gage at site 1.3 mi upstream at datum 3.99 ft higher, and Oct. 1, 1942, to Sept. 30, 1973, nonrecording gage at present site and datum.

REMARKS.--Records fair except those for Oct. 1 to Jan 28 and estimated daily discharges, which are poor. Gage-height telemeter at station.

EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Jan. 24, 1938, reached a stage of 16.9 ft, backwater from ice, from information by sewage-treatment plant employees.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	114	281	276	205	1040	518	309	1570	558	549	213	164
2	115	271	270	189	1090	510	308	1230	1040	514	202	157
3	126	257	265	151	1270	551	304	1030	1130	495	191	150
4	131	248	256	172	1230	541	304	893	1090	468	181	145
5	193	242	250	193	1070	500	296	807	880	430	173	140

6	231	234	273	203	929	477	298	920	749	399	166	139
7	238	226	468	207	842	407	288	1130	658	367	161	135
8	216	222	643	e205	781	427	294	1110	593	347	e165	132
9	190	221	590	e200	736	417	409	962	594	343	e168	127
10	173	572	488	e195	722	410	607	819	931	344	169	125

11	161	1090	428	e190	766	397	613	746	2650	324	158	124
12	151	973	390	e187	1090	393	508	987	2530	312	173	127
13	146	763	366	e183	1100	403	438	1210	3310	292	187	132
14	141	626	344	e180	949	405	400	1200	8860	275	177	133
15	138	543	330	e178	804	416	412	1010	7470	263	162	126

16	143	484	318	e176	740	450	693	863	4120	246	155	123
17	260	439	309	e173	685	539	960	1170	3130	307	150	119
18	979	400	300	e170	621	631	971	1740	2460	323	146	116
19	1130	384	290	e168	568	614	788	1730	1960	304	159	113
20	980	361	274	e168	521	534	674	1300	1560	434	164	111

21	708	339	271	e200	474	487	657	1060	1230	720	153	113
22	518	328	177	627	444	443	992	1290	1060	510	146	110
23	414	323	238	e1440	422	413	2680	1260	1020	395	177	108
24	353	305	247	e2210	408	388	3560	1070	1100	e350	392	104
25	311	296	230	e2850	401	362	3080	917	983	e339	337	103

26	289	289	230	2500	394	349	2330	781	819	329	278	99
27	300	277	229	e2080	437	339	1880	678	720	302	224	132
28	321	271	228	1830	506	333	2110	614	663	273	199	516
29	321	268	229	1560	---	326	2150	563	611	252	183	1130
30	308	282	178	1330	---	313	1970	515	559	240	163	1060

31	294	---	209	1130	---	307	---	496	---	227	160	---

TOTAL	10093	11815	9594	21450	21040	13600	31283	31671	55038	11273	5832	6113
MEAN	326	394	309	692	751	439	1043	1022	1835	364	188	204
MAX	1130	1090	643	2850	1270	631	3560	1740	8860	720	392	1130
MIN	114	221	177	151	394	307	288	496	558	227	146	99
CFSM	.61	.73	.58	1.29	1.40	.82	1.94	1.90	3.41	.68	.35	.38
IN.	.70	.82	.66	1.48	1.45	.94	2.16	2.19	3.81	.78	.40	.42

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1999, BY WATER YEAR (WY)
MEAN	234	286	303	300	407	684	639	489	432	286	215	239
MAX	1242	1328	1613	1053	1208	2337	2461	1610	1835	1815	1287	2215
(WY)	1973	1986	1983	1974	1997	1979	1993	1974	1999	1993	1987	1972
MIN	40.3	50.1	42.8	30.5	49.6	120	141	108	101	56.6	39.2	44.0
(WY)	1957	1957	1964	1940	1940	1956	1963	1949	1977	1941	1964	1964

SUMMARY STATISTICS	FOR 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1940 - 1999
ANNUAL TOTAL	168128		228802
ANNUAL MEAN	461		627		376
HIGHEST ANNUAL MEAN					992	1993
LOWEST ANNUAL MEAN					112	1963
HIGHEST DAILY MEAN	3190	Jun 27	8860	Jun 14	8860	Jun 14 1999
LOWEST DAILY MEAN	96	Sep 6, 13	99	Sep 26	15	A
ANNUAL SEVEN-DAY MINIMUM	108	Aug 31	107	Sep 20	23	Jan 2 1940
INSTANTANEOUS PEAK FLOW			11400	Jun 14	11900	Feb 20 1994
INSTANTANEOUS PEAK STAGE			13.97	Jun 14	14.19	Feb 20 1994
INSTANTANEOUS LOW FLOW			96	Sep 26	14 B	Sep 19 1988
ANNUAL RUNOFF (CFSM)	.86		1.17		.70
ANNUAL RUNOFF (INCHES)	11.63		15.82		9.49
10 PERCENT EXCEEDS	922		1220		804
50 PERCENT EXCEEDS	324		366		212
90 PERCENT EXCEEDS	128		151		68

A - Dec. 30, 1939; Jan. 7, 1940.
B - Observed.