Station list     Available data
ILLINOIS RIVER BASIN


414747087582700                         WESTMONT WATER DEPARTMENT AT WESTMONT, IL



LOCATION.--Latitude 41°47'47", longitude 87°58'27", in SW1/4SW1/4NW1/4 sec. 10, T.38 N., R.11 E., Du Page County.

PERIOD OF RECORD.--July 18, 1997 to current year.

GAGE.--A 6-in.-diameter, unheated, tipping-bucket rain gage.

REMARKS.--Snowfall-affected data can result during cold weather when snow fills the rain-gage funnel and then melts as temperatures rise. Snowfall-affected data are subject to appreciable errors.

MAXIMUM FOR PERIOD OF RECORD.--Maximum, 2.7 in., August 4, 1998.

MAXIMUM FOR WATER YEAR 1997.--Maximum recorded, 1.77 in., August 16, 1997.

MAXIMUM FOR WATER YEAR 1998.--Maximum, 2.7 in., August 4, 1998.
RAINFALL, IN INCHES, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY TOTAL VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 -- -- -- -- -- -- -- -- -- -- 0.00 0.00
2 -- -- -- -- -- -- -- -- -- -- .00 .00
3 -- -- -- -- -- -- -- -- -- -- 1.47 .00
4 -- -- -- -- -- -- -- -- -- -- .08 .00
5 -- -- -- -- -- -- -- -- -- -- .00 .01
6 -- -- -- -- -- -- -- -- -- -- .00 .00
7 -- -- -- -- -- -- -- -- -- -- .00 .00
8 -- -- -- -- -- -- -- -- -- -- .00 .00
9 -- -- -- -- -- -- -- -- -- -- .00 .00
10 -- -- -- -- -- -- -- -- -- -- .05 .00
11 -- -- -- -- -- -- -- -- -- -- .65 .00
12 -- -- -- -- -- -- -- -- -- -- .78 .00
13 -- -- -- -- -- -- -- -- -- -- .00 .00
14 -- -- -- -- -- -- -- -- -- -- .00 .00
15 -- -- -- -- -- -- -- -- -- -- .40 .00
16 -- -- -- -- -- -- -- -- -- -- 1.77 .86
17 -- -- -- -- -- -- -- -- -- -- .78 .21
18 -- -- -- -- -- -- -- -- -- 1.34 .00 .00
19 -- -- -- -- -- -- -- -- -- .00 .00 .16
20 -- -- -- -- -- -- -- -- -- .00 .00 .00
21 -- -- -- -- -- -- -- -- -- .18 .00 .00
22 -- -- -- -- -- -- -- -- -- .05 .00 .05
23 -- -- -- -- -- -- -- -- -- .00 .02 .08
24 -- -- -- -- -- -- -- -- -- .00 .22 .00
25 -- -- -- -- -- -- -- -- -- .00 .00 .00
26 -- -- -- -- -- -- -- -- -- .00 .00 .00
27 -- -- -- -- -- -- -- -- -- .00 .00 .00
28 -- -- -- -- -- -- -- -- -- .00 .00 .00
29 -- -- -- -- -- -- -- -- -- .00 .00 .00
30 -- -- -- -- -- -- -- -- -- .00 .01 .00
31 -- -- -- -- -- -- -- -- -- .00 .00 --

TOTAL -- -- -- -- -- -- -- -- -- -- 6.23 1.37
RAINFALL, IN INCHES, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY TOTAL VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 0.00 0.05 e0.02 0.00 0.10 0.00 0.16 0.00 0.00 0.00 0.00 0.00
2 .00 .00 .00 .00 .00 s.01 .00 .01 .00 .00 .00 .00
3 .00 .16 .12 .33 .00 s.03 .00 .00 .15 e1.36 .45 .09
4 .15 .00 .00 .23 .00 s.10 .00 .05 .00 .00 2.70 .00
5 .00 .10 .00 .42 .00 .00 .00 .25 .05 .00 .29 .00
6 .00 .15 .00 .21 .00 .01 .00 .20 .02 .00 .00 .46
7 .00 .00 .00 .08 .00 .00 .54 2.34 .00 .11 .33 2.37
8 .00 .00 .00 s.23 .00 .66 .35 .11 .11 .01 .00 .00
9 .05 .00 s.04 s.04 .00 s.23 .01 .00 1.28 .00 .00 .00
10 .00 .04 s.18 .00 .07 .00 .00 .00 .00 .00 .00 .00
11 .00 .00 s.01 .00 e.63 .00 .00 .00 1.26 .00 .00 .00
12 .00 .00 .00 .00 .00 .00 .01 .14 .00 .00 .00 .00
13 .53 .00 .00 .00 .00 .00 .27 .09 .00 .00 .00 .00
14 .00 s.05 .00 .00 .00 .00 .01 .00 .00 .00 .00 .83
15 .00 s.01 .00 .00 .00 .00 .10 .00 .00 .00 .03 .02
16 .00 .00 .00 .00 e.26 .00 .16 .00 .00 .00 .00 .00
17 .00 .00 .00 .00 .22 .58 .00 .00 .00 .00 .00 .00
18 .00 s.03 .00 s.02 .02 .21 .00 .00 .59 .00 .00 .00
19 .00 .00 .00 .00 .01 .02 .00 .00 .00 .35 .00 .00
20 .00 s.02 .00 .00 .03 .00 .59 .00 .00 .00 .00 .02
21 .00 .00 .00 .00 .00 .00 .05 .00 .00 .02 .00 .00
22 .00 .00 .09 .00 .00 .00 .00 .00 .00 .11 .02 .00
23 .00 .00 .00 s.01 .00 .00 .00 .34 .00 .00 .00 .00
24 .10 .00 s.26 .00 .09 .00 .00 .78 .00 .00 .38 .01
25 .00 .00 s.12 .00 .00 .00 .09 .00 .00 .00 .12 .02
26 e.90 .00 .00 s.01 .00 .00 .50 .00 1.36 .00 .00 .00
27 s.21 .79 .00 .00 .08 .00 .00 .00 .01 .00 .00 .00
28 .00 e.04 .00 .00 .01 .21 .04 .19 .22 .00 .42 .00
29 .00 e.14 .00 s.01 -- .00 .24 .05 .09 .00 .00 .09
30 .00 e.00 .00 .00 -- .00 .11 .00 .00 .00 .00 .49
31 .00 -- .00 .00 -- .91 -- .00 -- .00 .00 --

TOTAL 1.94 1.58 0.84 1.59 1.52 2.97 3.23 4.55 5.14 1.96 4.74 4.40
s Snowfall-affected precipitation
e Estimated


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data