LOCATION.-- Lat 41°44'27", long 88°23'00" (NAD of 1927), in NW1/4SE1/4 sec.25, T.38 N., R.7 E., Kane County, Hydrologic Unit 07120007, on right bank at bridge on Jericho Rd., 1.0 mi west of Montgomery, and at mile 13.0. | |
DRAINAGE AREA.-- 55.0 mi2. | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
DISCHARGE: June 1998 to current year. | |
STAGE: Water years 1998 to current year. | |
PRECIPITATION: October 1999 to current year. | |
GAGE.-- Water-stage recorder, phone telemeter, unheated tipping-bucket rain gage, and crest-stage gage. Datum of gage is 654.00 ft above NGVD of 1929. | |
REMARKS.-- Collection, computation, and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation. | |
EXTREMES FOR PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 1,040 ft3/s, Apr. 23, 1999, gage height, 8.61 ft; minimum, 0.16 ft3/s, Sept. 6,7, 2003. | |
PRECIPITATION: Maximum daily total, 2.62 in, October 13, 2001. | |
EXTREMES OUTSIDE PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE: Maximum measured, 1,170 ft3/s, Feb. 22, 1997, gage height unknown. | |
REMARKS FOR CURRENT YEAR.-- Records fair except those for estimated daily discharges, 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 | 7.6 | e11 | 6.0 | e6.0 | e11 | e9.2 | e25 | 172 | 42 | 8.0 | 89 | 2.0 |
| 2 | 12 | e11 | 7.5 | e5.8 | e11 | e9.2 | e34 | 227 | 38 | 5.2 | 76 | 1.3 |
| 3 | 12 | e12 | 6.1 | e5.6 | e12 | e8.4 | 69 | 126 | 41 | 5.4 | 86 | 1.0 |
| 4 | 13 | e12 | 5.8 | e5.6 | e14 | e9.2 | 86 | 80 | 37 | 12 | 80 | 1.5 |
| 5 | 22 | e12 | 5.8 | e5.6 | e13 | e9.2 | 84 | 191 | 33 | 14 | 48 | 1.6 |
| 6 | 17 | e11 | 5.0 | e5.6 | e12 | e9.2 | 68 | 164 | 32 | 16 | 40 | 0.46 |
| 7 | 15 | e9.6 | 6.1 | e5.6 | e11 | e9.2 | 56 | 102 | 31 | 19 | 46 | 0.62 |
| 8 | 13 | 8.2 | 5.5 | e5.4 | e11 | e9.2 | 47 | 92 | 37 | 23 | 36 | 0.80 |
| 9 | 14 | 7.6 | 4.4 | e5.2 | e11 | e10 | 40 | 253 | 45 | 29 | 28 | 1.9 |
| 10 | 13 | 8.5 | 5.2 | e4.8 | e11 | e9.2 | 40 | 305 | 39 | 29 | 22 | 0.74 |
| 11 | 12 | 8.8 | 5.2 | e4.6 | e10 | e10 | 37 | 242 | 36 | 25 | 18 | 1.0 |
| 12 | 11 | 7.8 | 5.3 | e7.8 | e9.8 | e12 | 32 | 194 | 33 | 16 | 16 | 1.2 |
| 13 | 12 | 7.8 | 5.8 | e8.8 | e9.6 | e39 | 27 | 136 | 30 | 17 | 14 | 1.3 |
| 14 | 11 | 9.4 | 5.7 | 9.9 | e9.2 | 33 | 24 | 105 | e24 | 18 | 12 | 2.9 |
| 15 | e10 | 13 | 4.9 | 8.6 | e9.2 | 26 | 23 | 91 | e22 | 54 | 11 | 2.8 |
| 16 | e9.4 | 9.3 | 5.5 | 9.8 | e9.0 | 24 | 23 | 78 | e20 | 54 | 10 | 2.5 |
| 17 | e9.0 | 9.5 | 4.8 | 8.6 | e9.0 | 26 | 22 | 68 | e19 | 29 | 9.3 | 2.0 |
| 18 | e9.0 | 9.8 | 7.2 | 8.9 | e9.0 | 19 | 22 | 61 | e21 | 129 | 7.6 | 1.5 |
| 19 | e9.0 | 11 | 11 | 10 | e9.0 | 18 | 20 | 57 | e20 | 78 | 6.0 | 2.1 |
| 20 | e9.4 | 11 | 15 | 11 | e9.0 | 32 | 22 | 57 | e17 | 55 | 5.6 | 2.0 |
| 21 | e9.2 | 12 | 14 | 10 | e9.2 | 36 | 21 | 52 | e15 | 47 | 6.4 | 1.4 |
| 22 | e9.0 | 10 | 13 | 9.0 | e10 | 31 | 19 | 47 | e14 | 35 | 7.6 | 2.0 |
| 23 | e9.2 | 8.5 | 10 | 8.5 | e9.6 | e26 | 18 | 44 | e13 | 27 | 5.0 | 3.0 |
| 24 | e9.4 | 9.1 | e7.0 | 8.7 | e9.6 | e23 | 16 | 40 | e13 | 20 | 4.8 | 2.6 |
| 25 | e10 | 8.8 | e6.2 | e10 | e9.0 | e20 | 19 | 36 | e14 | 15 | 5.2 | 2.8 |
| 26 | e12 | 11 | e6.0 | e10 | e9.0 | e19 | 17 | 33 | e13 | 13 | 3.1 | 4.0 |
| 27 | e12 | 8.9 | e5.8 | e9.8 | e9.2 | e18 | 15 | 30 | e12 | 13 | 4.7 | e5.2 |
| 28 | e12 | 7.9 | e5.6 | e9.4 | e9.2 | e19 | 15 | 30 | e11 | 24 | 3.9 | e5.0 |
| 29 | e12 | 7.4 | e5.8 | e9.4 | --- | e21 | 15 | 34 | e10 | 29 | 4.5 | e4.6 |
| 30 | e12 | 6.9 | e5.8 | e9.6 | --- | e21 | 23 | 35 | e10 | 23 | 3.2 | 4.5 |
| 31 | e11 | --- | e6.0 | e10 | --- | e18 | --- | 50 | --- | 22 | 1.7 | --- |
| TOTAL | 358.2 | 290.8 | 213.0 | 247.6 | 284.6 | 583.0 | 979 | 3232 | 742 | 903.6 | 710.6 | 66.32 |
| MEAN | 11.6 | 9.69 | 6.87 | 7.99 | 10.2 | 18.8 | 32.6 | 104 | 24.7 | 29.1 | 22.9 | 2.21 |
| MAX | 22 | 13 | 15 | 11 | 14 | 39 | 86 | 305 | 45 | 129 | 89 | 5.2 |
| MIN | 7.6 | 6.9 | 4.4 | 4.6 | 9.0 | 8.4 | 15 | 30 | 10 | 5.2 | 1.7 | 0.46 |
| CFSM | 0.21 | 0.18 | 0.12 | 0.15 | 0.18 | 0.34 | 0.59 | 1.90 | 0.45 | 0.53 | 0.42 | 0.04 |
| IN. | 0.24 | 0.20 | 0.14 | 0.17 | 0.19 | 0.39 | 0.66 | 2.19 | 0.50 | 0.61 | 0.48 | 0.04 |
| e Estimated |
| STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1998 - 2003, BY WATER YEAR (WY) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN | 43.3 | 31.5 | 24.5 | 34.3 | 58.7 | 47.0 | 71.7 | 71.7 | 58.5 | 38.7 | 23.0 | 14.3 |
| MAX | 86.5 | 53.2 | 38.1 | 106 | 137 | 72.5 | 156 | 107 | 92.5 | 90.8 | 35.4 | 26.8 |
| (WY) | 2002 | 2001 | 1999 | 1999 | 2001 | 2001 | 1999 | 2002 | 2002 | 1998 | 2000 | 2001 |
| MIN | 11.6 | 9.69 | 6.87 | 7.99 | 10.2 | 18.8 | 32.6 | 27.6 | 24.7 | 10.6 | 5.80 | 2.21 |
| (WY) | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2003 | 2001 | 2003 | 2001 | 2001 | 2003 |
| SUMMARY STATISTICS | FOR 2002 CALENDAR YEAR | FOR 2003 WATER YEAR | WATER YEARS 1998 - 2003 | |||
|---|---|---|---|---|---|---|
| ANNUAL TOTAL | 14653.2 | 8610.72 | ||||
| ANNUAL MEAN | 40.1 | 23.6 | 41.9 | |||
| HIGHEST ANNUAL MEAN | 64.6 | 1999 | ||||
| LOWEST ANNUAL MEAN | 23.6 | 2003 | ||||
| HIGHEST DAILY MEAN | 453 | Jun 6 | 305 | May 10 | 760 | Apr 24 1999 |
| LOWEST DAILY MEAN | 4.4 | Dec 9 | 0.46 | Sep 6 | 0.46 | Sep 6 2003 |
| ANNUAL SEVEN-DAY MINIMUM | 5.2 | Dec 9 | 0.96 | Sep 6 | 0.96 | Sep 6 2003 |
| MAXIMUM PEAK FLOW | 344 | May 10 | 1040 | Apr 23 1999 | ||
| MAXIMUM PEAK STAGE | 6.55 | May 10 | 8.61 | Apr 23 1999 | ||
| INSTANTANEOUS LOW FLOW | 0.16 | Sep 6,7 | 0.16 | A | ||
| ANNUAL RUNOFF (CFSM) | 0.73 | 0.43 | 0.76 | |||
| ANNUAL RUNOFF (INCHES) | 9.92 | 5.83 | 10.36 | |||
| 10 PERCENT EXCEEDS | 84 | 49 | 84 | |||
| 50 PERCENT EXCEEDS | 22 | 11 | 25 | |||
| 90 PERCENT EXCEEDS | 7.6 | 4.8 | 8.4 | |||