Station list     Available data
ILLINOIS RIVER BASIN


415356087575000                         ELMHURST QUARRY AT ELMHURST, IL



LOCATION.--Latitude 41°53'56", longitude 87°57'50", in SE1/4SW1/4NE sec.3, T.39 N., R.11 E., Du Page County.

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

GAGE.--An 8-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, 2.78 in., October 17, 1998.

MAXIMUM FOR CURRENT YEAR.--Maximum, 2.78 in., October 17, 1998.
RAINFALL, IN INCHES, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 1.10 0.60 0.00 0.00
2 .45 .01 .00 .00 .15 .07 .00 .00 .02 .00 .00 .00
3 .00 .03 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
4 .00 .09 .00 .00 .00 .00 .20 .03 .00 .00 .00 .00
5 .70 .00 .00 .00 .03 .00 .03 .05 .00 .00 .00 .00
6 .06 .00 .85 .00 .00 .00 .04 .23 .21 .00 .00 .00
7 .00 .00 .00 .00 .00 .00 .00 .02 .00 .00 .20 .00
8 .00 .04 .00 .00 .00 .00 1.24 .00 .05 .00 .00 .00
9 .00 .30 .00 .00 .00 .00 .19 .00 .00 .71 .04 .00
10 .00 .91 .00 .00 .00 .00 .09 .00 .01 .00 .00 .00
11 .00 .00 .00 .00 .33 .00 .01 1.24 1.37 .00 .00 .00
12 .00 .00 .00 .00 .00 .00 .00 .44 .53 .00 .28 .19
13 .00 .00 .00 .00 .00 .00 .00 .00 2.09 .00 .07 .01
14 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00
15 .03 .00 .00 .00 .00 .00 .94 .00 .00 .00 .00 .00
16 .00 .00 .00 s.40 .04 .00 .36 .00 .00 .00 .00 .00
17 2.78 .00 .00 .38 .00 .00 .00 .70 .00 .30 .00 .00
18 .17 .00 .00 .00 .00 .00 .07 .06 .00 .00 .07 .00
19 .00 .00 .00 .00 .00 .00 .00 .00 .00 .08 .55 .03
20 .00 .00 .00 .00 .00 .00 .16 .00 .00 .02 .00 .00
21 .00 .00 .00 .70 .00 .00 .12 .90 .00 .40 .00 .08
22 .00 .00 .00 .43 .00 .00 1.33 .03 .32 .00 .00 .00
23 .00 .00 .00 .72 .00 .00 .54 .30 .28 .22 .38 .00
24 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .04 .00
25 .00 .00 .00 .00 s.08 .00 .00 .00 .00 .00 .09 .00
26 .00 .00 .00 .00 .25 .00 .00 .00 .00 .01 .00 .00
27 .50 .00 .00 .00 .22 .00 1.07 .00 .08 .00 .00 .52
28 .01 .00 .00 .00 .05 .00 .02 .00 .06 .00 .00 1.48
29 .08 .00 s.01 .00 -- .00 .00 .00 .00 .00 .00 .10
30 .00 .41 .00 .00 -- .00 .00 .00 .00 .00 .00 .00
31 .00 -- .00 .00 -- .00 -- .02 -- .00 .00 --

TOTAL 4.78 1.79 0.86 2.63 1.17 0.07 6.41 4.02 6.12 2.34 1.72 2.41
s Snowfall-affected precipitation


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data