Station list
Available data
ILLINOIS RIVER BASIN
05543500 ILLINOIS RIVER AT MARSEILLES, IL
LOCATION.--Lat 41°19'37", long 88°43'03", in SE1/4SW1/4 sec.13, T.33 N., R.4 E., La Salle County, Hydrologic Unit 07120005,
on right bank 0.5 mi downstream from Marseilles Dam in Marseilles, 6.9 mi upstream from Fox River, and at mile 246.5.
DRAINAGE AREA.--8,259 mi2, does not include diversion from Lake Michigan through the Chicago Sanitary and Ship Canal,
which has occurred since Jan. 17, 1900.
PERIOD OF RECORD.--October 1919 to current year. Prior to October 1939, published as "at Morris."
REVISED RECORDS.--WDR IL-75-1: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 462.91 ft above sea level. October 1919 to January 1935, nonrecording gage at
site at Morris, 16.6 mi upstream, at datum 478.50 ft above sea level. January 1935 to September 1939, water-stage recorder at
site 300 ft downstream from site used 1919-35 and at that datum.
REMARKS.--Records good. Figures of daily discharge include flow through navigation locks. Flow regulated by powerplants and
navigation dam above station. Since Jan. 17, 1900, flow has included diversion from Lake Michigan through Chicago Sanitary
and Ship Canal. Gage-height telemeter at station.
EXTREMES OUTSIDE PERIOD OF RECORD.--A stage of 26.2 ft at Morris occurred in 1831, and a stage of 25.4 ft (ice jam)
occurred at present site on Jan. 21, 1916.
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 | 3740 | 5430 | 4370 | 3070 | 21900 | 10500 | 6990 | 24700 | 9790 | 7960 | 4360 | 4310
|
2 | 3820 | 4260 | 3700 | 3200 | 20100 | 9900 | 6020 | 22400 | 19900 | 9130 | 3860 | 3240
|
3 | 4830 | 3490 | 2860 | 1930 | 21200 | 10100 | 7100 | 19200 | 20400 | 9460 | 4650 | 3190
|
4 | 5500 | 2950 | 3330 | e2300 | 19100 | 11000 | 6460 | 17500 | 15600 | 9310 | 4180 | 4490
|
5 | 4240 | 3960 | 4000 | e2100 | 16800 | 11100 | 7500 | 15500 | 13400 | 8590 | 3520 | 3610
|
|
6 | 4710 | 3680 | 4470 | e2000 | 15500 | 11600 | 5820 | 14800 | 11200 | 8250 | 4670 | 3230
|
7 | 5800 | 2770 | 8510 | e2200 | 13900 | 12700 | 6360 | 15300 | 9880 | 7330 | 4220 | 4430
|
8 | 4410 | 3660 | 8760 | e2050 | 12900 | 12300 | 6800 | 13800 | 8810 | 7020 | 3940 | 2870
|
9 | 4290 | 3250 | 6510 | e1900 | 12800 | 11600 | 13500 | 12100 | 8620 | 6110 | 4570 | 3190
|
10 | 4520 | 6540 | 6530 | e2000 | 15200 | 11700 | 13300 | 11200 | 8880 | 5410 | 3020 | 2670
|
|
11 | 3570 | 8490 | 5760 | e2100 | 14700 | 11300 | 12800 | 10600 | 11700 | 6320 | 4170 | 2990
|
12 | 3570 | 7920 | 4520 | e2000 | 14400 | 10400 | 12200 | 14200 | 19800 | 5400 | 4990 | 2510
|
13 | 3070 | 5970 | 4930 | e1900 | 14300 | 9970 | 10700 | 21000 | 26200 | 4920 | 3830 | 3460
|
14 | 4320 | 6310 | 4070 | e1980 | 12900 | 10800 | 10500 | 21400 | 39500 | 5000 | 4540 | 2360
|
15 | 2720 | 5540 | 4400 | e2040 | 11400 | 9090 | 10400 | 16500 | 34500 | 4610 | 5050 | 2790
|
|
16 | 3870 | 4280 | 3740 | e2130 | 10700 | 9860 | 24100 | 15000 | 23600 | 4430 | 4310 | 2870
|
17 | 4550 | 4660 | 4090 | e2250 | 10900 | 15000 | 38600 | 16300 | 18500 | 4810 | 3590 | 1730
|
18 | 10700 | 4010 | 3980 | e2400 | 9910 | 19500 | 40200 | 16600 | 14200 | 5670 | 4140 | 3270
|
19 | 10400 | 3400 | 3610 | e2700 | 9460 | 17100 | 33500 | 13800 | 11500 | 5350 | 5260 | 2310
|
20 | 10200 | 3900 | 2520 | e3100 | 9360 | 14500 | 29500 | 12000 | 9860 | 5480 | 5050 | 2030
|
|
21 | 8000 | 3290 | 3800 | 4890 | 8680 | 12700 | 25800 | 10400 | 8760 | 5180 | 5560 | 2800
|
22 | 6300 | 3520 | 3570 | 14100 | 7650 | 12100 | 27300 | 13000 | 9110 | 6470 | 4880 | 3180
|
23 | 5040 | 3210 | 1980 | 26000 | 6770 | 10700 | 40000 | 13300 | 10300 | 6920 | 4890 | 1690
|
24 | 4330 | 2870 | 3460 | 44000 | 7390 | 10100 | 45600 | 12600 | 12200 | 6700 | 5490 | 3060
|
25 | 5000 | 2460 | 2590 | 46000 | 7120 | 9010 | 37600 | 10800 | 10100 | 6410 | 6620 | 1930
|
|
26 | 3860 | 4180 | 2270 | 41000 | 6730 | 8280 | 29800 | 9640 | 8630 | 6930 | 5850 | 2630
|
27 | 3550 | 3000 | 3350 | 36100 | 8270 | 7950 | 25400 | 8670 | 8800 | 4820 | 5610 | 2350
|
28 | 5440 | 3390 | 2010 | 38100 | 8100 | 7760 | 32500 | 7380 | 8110 | 5400 | 5200 | 8020
|
29 | 5090 | 2990 | 3700 | 35800 | --- | 7460 | 33500 | 7740 | 7290 | 4580 | 5170 | 7750
|
30 | 5070 | 3030 | 2270 | 28800 | --- | 7180 | 29600 | 6760 | 7680 | 4860 | 3880 | 5390
|
|
31 | 5130 | --- | 3380 | 25100 | --- | 6780 | --- | 6720 | --- | 4860 | 4110 | ---
|
TOTAL | 159640 | 126410 | 127040 | 385240 | 348140 | 340040 | 629450 | 430910 | 426820 | 193690 | 143180 | 100350
|
MEAN | 5150 | 4214 | 4098 | 12430 | 12430 | 10970 | 20980 | 13900 | 14230 | 6248 | 4619 | 3345
|
MAX | 10700 | 8490 | 8760 | 46000 | 21900 | 19500 | 45600 | 24700 | 39500 | 9460 | 6620 | 8020
|
MIN | 2720 | 2460 | 1980 | 1900 | 6730 | 6780 | 5820 | 6720 | 7290 | 4430 | 3020 | 1690
|
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1920 - 1999, BY WATER YEAR (WY)
|
---|
MEAN | 7568 | 8604 | 9817 | 10180 | 11730 | 15240 | 16380 | 13820 | 11780 | 9250 | 7851 | 7750
|
MAX | 21050 | 24180 | 30100 | 28430 | 25970 | 41290 | 33180 | 35180 | 25940 | 21020 | 19220 | 22770
|
(WY) | 1927 | 1986 | 1983 | 1993 | 1997 | 1979 | 1922 | 1943 | 1993 | 1957 | 1924 | 1993
|
MIN | 3518 | 3720 | 3739 | 3202 | 3264 | 5153 | 6516 | 5649 | 4346 | 4687 | 4242 | 3345
|
(WY) | 1975 | 1977 | 1944 | 1963 | 1963 | 1964 | 1986 | 1988 | 1988 | 1988 | 1939 | 1999
|
SUMMARY STATISTICS | FOR 1998 CALENDAR YEAR | FOR 1999 WATER YEAR | WATER YEARS 1920 - 1999 |
---|
ANNUAL TOTAL | 4495850 | | 3410910 | | |
|
ANNUAL MEAN | 12320 | | 9345 | | 10820 |
|
HIGHEST ANNUAL MEAN | | | | | 17850 | 1993
|
LOWEST ANNUAL MEAN | | | | | 5583 | 1964
|
HIGHEST DAILY MEAN | 72600 | May 9 | 46000 | Jan 25 | 89600 | Feb 22 1997
|
LOWEST DAILY MEAN | 1980 | Dec 23 | 1690 | Sep 23 | 1460 | Oct 16 1943
|
ANNUAL SEVEN-DAY MINIMUM | 2750 | Dec 22 | 1990 | Jan 9 | 1990 A | Jan 9 1999
|
INSTANTANEOUS PEAK FLOW | | | 47100 | Apr 23 | 95000 | Feb 22 1997
|
INSTANTANEOUS PEAK STAGE | | | 9.48 | Apr 23 | 16.85 | Feb 22 1997
|
INSTANTANEOUS LOW FLOW | | | 975 | B | |
|
10 PERCENT EXCEEDS | 22800 | | 20000 | | 19500 |
|
50 PERCENT EXCEEDS | 9090 | | 6460 | | 9000 |
|
90 PERCENT EXCEEDS | 3620 | | 2780 | | 4560 |
|
A - Period estimated due to backwater from ice.
B - October 3, 5, 15, and 17.