Station list
Available data
ST. LAWRENCE RIVER BASIN
04087440 LAKE MICHIGAN AT CHICAGO LOCK AND DAM AT CHICAGO, IL
LOCATION.--Lat 41°53'18", long 87°36'27", in NE1/4 SE1/4 sec.10, T.39 N., R.14 E., Cook County, Hydrologic
Unit 04060200, on the lakeside of the downstream left guidewall, approximately 75 ft west of the riverside
gates of the Chicago Lock.
DRAINAGE AREA.--Indeterminate.
PERIOD OF RECORD.--August 1997 to current year.
GAGE.--Water-stage recorder. Datum of gage is 579.48 ft above sea level (Chicago City Datum).
REMARKS.--Gage provides stage data to determine Illinois' diversion of Lake Michigan water. Gage-height
telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 3.84 ft, May 31, 1998; minimum, -2.70 ft., Dec. 18, 1998.
EXTREMES FOR CURRENT YEAR.--Maximum gage height, 1.74 ft, Dec. 29, minimum, -2.70 ft, Dec. 18.
GAGE HEIGHT, FEET, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
|
|---|
| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP
|
|---|
|
|
| 1 | .38 | .66 | -.65 | -.25 | -.08 | -.73 | -.46 | -.16 | .04 | .10 | .11 | -.19
|
| 2 | -.01 | .65 | -.30 | .44 | -.25 | -.46 | -.27 | -.13 | .08 | .00 | .09 | -.12
|
| 3 | .80 | .56 | .06 | .13 | -1.47 | -.45 | -.28 | -.06 | -.11 | -.18 | .04 | -.08
|
| 4 | .88 | .55 | .19 | -.21 | -.32 | -.69 | -.02 | -.28 | -.15 | -.07 | .10 | -.14
|
| 5 | .86 | .53 | .33 | -.69 | -1.11 | -.36 | -.35 | -.86 | -.14 | -.14 | .05 | -.21
|
|
|
| 6 | .83 | .47 | .33 | -.46 | -.20 | -.16 | -.81 | -.30 | -.19 | -.05 | -.01 | -.13
|
| 7 | .74 | .35 | .00 | -.63 | -.21 | -.48 | -.87 | -.86 | -.19 | -.01 | -.04 | -.38
|
| 8 | .73 | .44 | .09 | -.31 | -.67 | -1.63 | -.25 | -.27 | -.09 | -.11 | .18 | -.39
|
| 9 | .77 | -.02 | -.10 | -.23 | -.42 | -.75 | -.41 | -.29 | .00 | .08 | -.26 | -.36
|
| 10 | .69 | -1.23 | -.04 | -.49 | -.58 | -.32 | -.69 | -.16 | .06 | .13 | -.04 | -.51
|
|
|
| 11 | --- | -.41 | -.22 | -.48 | -1.61 | -.26 | -.06 | -.07 | -.01 | .08 | .04 | -.59
|
| 12 | --- | -.27 | -.19 | -.01 | -.52 | -.35 | -.32 | -.01 | -.01 | .20 | -.46 | -.53
|
| 13 | .67 | .06 | .10 | .40 | -.70 | -.40 | -.22 | -.06 | .13 | .12 | -.08 | -.52
|
| 14 | .66 | .18 | -.19 | .16 | -1.32 | -.47 | -.24 | -.05 | .06 | -.09 | -.09 | -.67
|
| 15 | .46 | -.01 | -.39 | -.27 | -.98 | -.44 | -.51 | -.01 | -.21 | -.09 | -.09 | -.55
|
|
|
| 16 | .30 | .13 | .00 | -.63 | -.07 | -.69 | -.23 | -.20 | .15 | -.05 | -.40 | -.54
|
| 17 | .07 | .34 | .03 | -.41 | -.06 | -.80 | -.34 | -.47 | .03 | .05 | -.06 | -.58
|
| 18 | .00 | -.35 | -.88 | -.48 | -.15 | -.60 | -.40 | -.21 | -.02 | .10 | .10 | -.65
|
| 19 | .22 | .11 | .10 | -.49 | -.06 | -.59 | -.23 | -.20 | -.03 | .20 | -.23 | -.66
|
| 20 | .33 | .02 | .00 | -.36 | .00 | -.41 | -.26 | -.12 | .11 | .22 | .01 | -.51
|
|
|
| 21 | .64 | -.22 | .12 | .03 | -.23 | -.43 | -.18 | -.10 | .16 | .16 | -.09 | -.71
|
| 22 | .42 | -1.18 | -.52 | .19 | -.51 | -.85 | -.13 | -.08 | .06 | .14 | -.08 | -.64
|
| 23 | .20 | -.43 | -.70 | .12 | -.81 | -.68 | -.17 | -.10 | -.15 | .06 | -.45 | -.72
|
| 24 | .20 | -.24 | -.82 | -.29 | -.46 | -.55 | -.25 | -.13 | .05 | .07 | -.04 | -.67
|
| 25 | .49 | -.15 | -1.28 | -.22 | -.13 | -.41 | -.27 | -.47 | -.03 | .08 | .04 | -.66
|
|
|
| 26 | .63 | .03 | -.61 | -.34 | -.60 | -.43 | -.24 | -.28 | .01 | .16 | .09 | -1.36
|
| 27 | .47 | -.04 | -.98 | -.21 | -.47 | -.35 | -.11 | -.20 | .01 | .15 | -.02 | -.71
|
| 28 | .54 | .16 | -.56 | .06 | -.19 | -.65 | -.03 | -.14 | .12 | .04 | -.09 | -.39
|
| 29 | .32 | -.24 | -.45 | -.26 | --- | -.62 | -.20 | -.16 | -.16 | -.05 | -.09 | -.66
|
| 30 | .68 | -.23 | -.47 | -.13 | --- | -.65 | -.18 | -.21 | -.09 | .07 | -.50 | -.81
|
|
|
| 31 | .62 | --- | -.38 | -.36 | --- | -1.44 | --- | -.27 | --- | .11 | -.54 | ---
|
| MEAN | --- | .01 | -.27 | -.22 | -.51 | -.58 | -.30 | -.22 | -.02 | .05 | -.09 | -.52
|
| MAX | --- | .66 | .33 | .44 | .00 | -.16 | -.02 | -.01 | .16 | .22 | .18 | -.08
|
| MIN | --- | -1.23 | -1.28 | -.69 | -1.61 | -1.63 | -.87 | -.86 | -.21 | -.18 | -.54 | -1.36
|