05430500 DATA: Discharge Tables, 2003

Station list Available data
ROCK RIVER BASIN

05430500 ROCK RIVER AT AFTON, WI


LOCATION.-- Lat 42°36'33", long 89°04'14" (NAD of 1927), in NE 1/4 sec.28, T.2 N., R.12 E., Rock County, Hydrologic Unit 07090001, on right bank in Afton, 0.3 mi downstream from highway bridge and 1.1 mi upstream from Bass Creek.

DRAINAGE AREA.-- 3,340 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE
	DISCHARGE: January 1914 to current year. Monthly discharge for January 1914 published in WSP 1308.

REVISED RECORDS.-- WSP 1238: 1916(M), 1919(M), 1933, 1937-38, 1943. WDR WI-79-1: Drainage area.

GAGE.-- Water-stage recorder and satellite telemeter. Datum of gage is 742.36 ft above NGVD of 1929. Prior to Aug. 23, 1932, a nonrecording gage 20 ft upstream, and Aug. 23, 1932, to Sept. 30, 1933, water-stage recorder, at same site at datum 1 ft higher.

REMARKS.-- Diurnal fluctuation caused by powerplants above station.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 13,000 ft³/s, March 23, 1929, gage height, 11.81 ft, present datum; maximum gage height, 13.05 ft, February 5, 1916, present datum, backwater from ice; minimum daily discharge, 42 ft³/s, August 25 and 26, 1934.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are fair, and periods of discharge below 800 ft³/s, which are poor.

Discharge, cubic feet per second, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	1020	1540	1090	1090	e790	e630	1530	1370	2410	840	637	449
2	1370	1520	e1100	1100	e760	e610	1570	1930	2170	862	630	450
3	1480	1470	e1100	e960	e740	e610	1590	2300	1860	806	683	396
4	1740	1480	e1100	e960	e730	e610	1590	2150	1940	795	682	368
5	1840	1470	e1000	e980	e730	e610	1560	2520	1780	858	595	384

6	1830	1370	e1000	e1000	e730	e640	1470	2520	1590	903	601	336
7	1690	1000	e1000	1040	e730	e650	1570	2630	1500	791	688	352
8	1940	1060	e1000	1090	e730	e650	1530	2600	1450	995	726	478
9	1870	1420	e900	1380	e730	e640	1450	3060	1500	990	679	559
10	1800	1430	e900	e1200	e730	e640	1470	3060	1470	1250	626	498

11	1530	1410	e900	e1100	e730	733	1430	2840	1190	1110	610	467
12	1290	1380	e900	e1000	e720	726	1400	2940	1310	1020	677	430
13	1310	1330	e870	e950	e700	721	1430	3230	1320	1030	714	543
14	1350	1350	e870	e940	e700	745	1360	3600	1390	938	723	759
15	1350	1440	e870	e920	e700	788	914	3630	1410	1110	646	561

16	1370	1390	e880	e900	e700	767	968	3600	1400	1010	528	409
17	1340	1400	e900	e860	e700	751	1020	3520	1600	946	538	604
18	1420	1400	e950	e860	e700	795	509	3480	1580	1110	544	529
19	1370	1320	e1000	e850	e700	1070	626	3400	1640	1070	534	489
20	1360	1320	e1000	e840	e710	1060	851	3480	1300	852	465	444

21	1360	1320	e1000	e840	e680	1320	936	3370	1040	1060	382	667
22	1430	1280	e1000	e830	e590	1340	1000	3330	1060	1220	657	626
23	1440	1260	e1000	e830	e560	1390	1180	3420	968	1150	510	449
24	1630	1240	e970	e830	e530	1340	1490	3280	686	1090	366	515
25	1330	1260	e970	e830	e540	1700	1480	3170	844	929	494	558

26	1220	1170	e990	e830	e570	1650	1700	3030	764	790	439	474
27	1350	e1200	e1000	e830	e600	1610	1580	2960	684	744	335	444
28	1220	e1100	e1000	e820	e630	1670	1410	2750	855	761	430	586
29	1590	e1100	e1100	e820	---	1610	1070	2560	853	715	481	487
30	1590	e1100	1160	e800	---	1580	1190	2640	822	668	351	466

31	1560	---	1120	e790	---	1540	---	2610	---	633	384	---

TOTAL	45990	39530	30640	29070	19160	31196	38874	90980	40386	29046	17355	14777
MEAN	1484	1318	988	938	684	1006	1296	2935	1346	937	560	493
MAX	1940	1540	1160	1380	790	1700	1700	3630	2410	1250	726	759
MIN	1020	1000	870	790	530	610	509	1370	684	633	335	336
CFSM	0.44	0.39	0.30	0.28	0.20	0.30	0.39	0.88	0.40	0.28	0.17	0.15
IN.	0.51	0.44	0.34	0.32	0.21	0.35	0.43	1.01	0.45	0.32	0.19	0.16

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1914 - 2003, BY WATER YEAR (WY)
MEAN	1400	1579	1473	1311	1560	3315	4076	2606	1848	1434	1135	1194
MAX	8219	5884	4395	3558	5647	8958	10010	7911	7452	5443	5376	5088
(WY)	1987	1986	1986	1960	1938	1918	1979	1973	2000	1993	1924	1938
MIN	254	397	383	275	327	610	1002	389	314	247	183	212
(WY)	1940	1964	1940	1959	1959	1940	1931	1958	1934	1934	1934	1939

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR		FOR 2003 WATER YEAR		WATER YEARS 1914 - 2003
ANNUAL TOTAL	711448		427004
ANNUAL MEAN	1949		1170		1914
HIGHEST ANNUAL MEAN					3925	1993
LOWEST ANNUAL MEAN					557	1964
HIGHEST DAILY MEAN	4270	Mar 18	3630	May 15	13000	Mar 23 1929
LOWEST DAILY MEAN	603	Aug 10	335	Aug 27	42	Aug 25 1934
ANNUAL SEVEN-DAY MINIMUM	720	Sep 12	391	Sep 1	115	Aug 24 1934
MAXIMUM PEAK FLOW			3680	May 14	13000	Mar 23 1929
MAXIMUM PEAK STAGE			6.52	May 14	13.05	Feb 5 1916
ANNUAL RUNOFF (CFSM)	0.58		0.35		0.57
ANNUAL RUNOFF (INCHES)	7.92		4.76		7.79
10 PERCENT EXCEEDS	3630		1850		4040
50 PERCENT EXCEEDS	1600		1000		1350
90 PERCENT EXCEEDS	784		536		482