Station list     Available data
ILLINOIS RIVER BASIN


05535000                   SKOKIE RIVER AT LAKE FOREST, IL



LOCATION.--Lat 42°13'57", long 87°50'41", in NW1/4SW1/4 sec.4, T.43 N., R.12 E., Lake County, Hydrologic Unit 07120003, on left bank at downstream side of bridge on West Leigh Road at Lake Forest and at mile 13.1.

DRAINAGE AREA.--13.0 mi2.

PERIOD OF RECORD.--October 1951 to current year. Prior to October 1952, records published with those for streams in the St. Lawrence River Basin (WSP 1237).

REVISED RECORDS.--WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 648.75 ft above sea level.

REMARKS.--Records good except those for estimated daily discharges, which are poor. Gage-height telemeter at station.
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 1.2   16    4.0 1.1   31    15    7.5 22    32    5.4   .81 1.3  
2 1.9   14    3.1 1.0   47    15    7.5 20    74    2.6   1.1   .85
3 8.2   12    2.9 e1.0   44    17    7.1 18    24    1.9   .67 .68
4 4.1   13    2.6 e1.1   39    14    8.3 17    18    1.6   .67 .63
5 29      8.3 2.8 e1.0   32    12    7.5 17    14    1.3   .67 .62
 
6 18      4.6 22    e.96 33    13    8.8 23    28    1.0   .68 .75
7 15      3.4 36    e1.0   30    13    7.2 18    22    .76 .67 .84
8 11      3.3 20    e1.1   26    11    19    16    9.7 .58 .77 .95
9 5.2   3.5 15    e1.0   27    13    173    15    6.5 1.1   .82 .77
10 2.6   97    13    e1.0   25    16    71    14    6.7 .64 .72 .63
 
11 1.9   39    10    .96 32    15    41    12    8.7 .69 .81 .76
12 1.7   25    8.0 .96 33    16    30    23    5.5 .51 5.9   1.5  
13 1.6   19    5.4 1.1   24    17    24    14    131    .49 2.5   4.5  
14 1.9   16    3.7 1.6   21    16    21    11    89    .48 1.4   .99
15 .97 14    3.3 1.8   20    19    31    8.3 28    .48 .98 .67
 
16 .93 12    3.1 2.0   21    31    103    9.3 18    .54 .93 .61
17 82      10    2.9 14      19    66    58    36    15    1.1   .86 .64
18 98      8.5 2.7 37      18    48    36    23    14    1.3   .84 .67
19 35      6.2 2.5 38      18    32    28    18    13    .72 19      .71
20 22      4.1 2.5 35      18    26    29    16    13    .62 5.9   3.0  
 
21 18      3.3 2.4 36      15    22    42    16    12    1.3   2.9   6.6  
22 15      2.8 1.9 216      10    20    202    16    12    1.7   1.8   2.4  
23 13      2.5 1.7 150      8.5 19    321    20    11    10      1.9   1.3  
24 11      2.3 1.4 119      8.3 18    113    16    8.9 8.9   4.3   1.1  
25 8.1   e2.2 1.3 70      8.6 16    65    12    3.4 3.4   9.2   .83
 
26 3.7   e2.3 1.2 48      9.4 12    33    9.1 2.0 2.2   7.1   .63
27 7.2   e2.5 e1.2 49      19    11    40    7.7 1.9 1.5   3.2   5.8  
28 12      e2.9 e1.1 53      17    11    71    6.6 5.5 1.2   1.7   63     
29 9.4   e4.5 e1.1 41      ---    9.5 36    6.3 4.0 .98 1.2   35     
30 33      e9.0 1.2 34      ---    8.9 25    5.6 1.9 .90 .93 17     
 
31 20      ---    1.1 32      ---    8.5 ---    32    ---    .88 .73 ---     

TOTAL 492.60 363.2 181.1 990.68 653.8 580.9 1665.9 497.9 632.7 56.77 81.66 155.73
MEAN 15.9 12.1 5.84 32.0 23.4 18.7 55.5 16.1 21.1 1.83 2.63 5.19
MAX 98 97 36 216 47 66 321 36 131 10 19 63
MIN .93 2.2 1.1 .96 8.3 8.5 7.1 5.6 1.9 .48 .67 .61
CFSM 1.22 .93 .45 2.46 1.80 1.44 4.27 1.24 1.62 .14 .20 .40
IN. 1.41 1.04 .52 2.83 1.87 1.66 4.77 1.42 1.81 .16 .23 .45

e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1952 - 1999, BY WATER YEAR (WY)
MEAN 7.12 10.6 11.2 9.99 13.4 23.1 25.2 14.9 12.2 8.03 7.12 7.76
MAX 30.0 44.5 53.7 42.4 35.5 82.3 56.9 54.3 41.6 33.3 41.7 61.7
(WY) 1987 1986 1983 1974 1997 1979 1983 1996 1996 1993 1972 1986
MIN .83 1.38 1.20 .29 1.08 4.01 5.95 2.26 .91 1.29 1.26 1.12
(WY) 1957 1954 1959 1959 1963 1956 1986 1988 1988 1991 1955 1979

SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1952 - 1999
ANNUAL TOTAL 5761.02 6352.94
ANNUAL MEAN 15.8   17.4   12.5      
HIGHEST ANNUAL MEAN 22.2       1974
LOWEST ANNUAL MEAN 3.54     1963
HIGHEST DAILY MEAN 162          Jun 26 321          Apr 23 444          Sep 27 1986
LOWEST DAILY MEAN .75     Sep 5 .48     Jul 14,15 .00     A
ANNUAL SEVEN-DAY MINIMUM .82     Aug 18 .55     Jul 10 .00     Jan 3 1959
INSTANTANEOUS PEAK FLOW 472          Apr 23 496      B Feb 21 1997
INSTANTANEOUS PEAK STAGE 7.08     Apr 23 8.35     Jul 22 1982
INSTANTANEOUS LOW FLOW .48     Jul 11-16
ANNUAL RUNOFF (CFSM) 1.21 1.34 .96    
ANNUAL RUNOFF (INCHES) 16.49 18.18 13.09    
10 PERCENT EXCEEDS 36      36      28         
50 PERCENT EXCEEDS 9.2   8.7   5.3      
90 PERCENT EXCEEDS 1.2   .84 1.4      
A - Many days in 1959.
B - Gage height, 7.24 ft.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data