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LOCATION.-- Latitude 41°50'37", longitude 88°11'06" (NAD of 1927), in SW1/4SW1/4SW1/4 sec.23, T.39 N., R.9 E., Du Page County, Hydrologic Unit 07120004, on Mack Road 1 mi east of State Highway 59, and located on the north side of the roof of the Blackwell Forest Preserve maintenance building near Warrenville. |
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PERIOD OF RECORD.-- |
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PRECIPITATION: July 1997 to current year. |
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GAGE.-- An 8-in.-diameter, unheated, tipping-bucket rain gage. |
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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. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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PRECIPITATION: Maximum daily total, 5.06 in., September 11, 2000. |
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EXTREMES FOR CURRENT YEAR.--Maximum daily total, 4.00 in., July 9. |
PRECIPITATION, TOTAL, IN INCHES, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY SUM VALUES |
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| DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
| 1 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.00 | 0.18 | 0.15 | 0.00 | 0.00 | 0.00 | 0.00 |
| 2 | .00 | .00 | .00 | .00 | .00 | .15 | .07 | .02 | .00 | .00 | .00 | .25 |
| 3 | .00 | .00 | .00 | .00 | .01 | .00 | .00 | .00 | .29 | .00 | .00 | .00 |
| 4 | e.81 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | 1.93 | .00 | 1.12 | .00 |
| 5 | e.15 | .00 | .01 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| 6 | .00 | .00 | .00 | .01 | .03 | .42 | .00 | .05 | .00 | .00 | .00 | .00 |
| 7 | .01 | .00 | .00 | .00 | .15 | .00 | .38 | .00 | .00 | .00 | .00 | .00 |
| 8 | .00 | .00 | .00 | .00 | .05 | .19 | .81 | .08 | .00 | .00 | .00 | .00 |
| 9 | .00 | .00 | .00 | .00 | .00 | .48 | .09 | .31 | .00 | 4.00 | .00 | .00 |
| 10 | .16 | .00 | .00 | .00 | .09 | .00 | .00 | .00 | .00 | .00 | .00 | .08 |
| 11 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | 1.99 | .00 | .00 | .00 | .00 |
| 12 | .48 | .00 | .36 | .00 | .00 | .00 | .00 | .38 | .00 | .00 | .13 | .00 |
| 13 | 3.03 | .01 | .14 | .00 | .00 | .00 | .00 | .00 | .26 | .00 | e2.86 | .00 |
| 14 | .01 | .27 | .01 | .05 | .00 | .00 | .00 | .00 | .05 | .00 | .01 | .00 |
| 15 | .06 | .00 | .00 | .00 | .00 | .00 | .01 | .00 | .00 | .00 | .00 | .00 |
| 16 | .02 | .00 | .10 | .00 | .00 | .00 | .00 | .88 | .00 | .00 | .01 | .00 |
| 17 | .00 | .00 | .03 | .00 | .00 | .00 | .05 | .00 | .00 | .00 | .00 | .00 |
| 18 | .00 | .08 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .00 | .13 |
| 19 | .00 | .08 | .06 | .00 | .49 | .00 | .32 | .01 | .00 | .00 | .08 | .44 |
| 20 | .00 | .00 | .00 | .00 | .50 | .03 | .28 | .00 | .00 | .00 | .00 | .34 |
| 21 | .00 | .00 | .00 | .02 | .00 | .00 | .30 | .00 | .00 | .00 | .00 | .00 |
| 22 | .43 | .00 | .11 | .00 | .00 | .00 | .01 | .00 | .00 | .00 | 1.81 | .19 |
| 23 | .52 | .01 | .00 | .00 | .00 | .00 | .00 | .03 | .00 | .00 | .09 | .00 |
| 24 | .32 | .37 | .00 | .00 | .00 | .00 | .23 | .04 | .00 | .00 | .00 | .00 |
| 25 | .01 | .15 | .00 | .00 | .00 | .00 | .00 | .24 | .00 | .00 | .00 | .00 |
| 26 | .03 | .01 | .00 | .00 | .00 | .01 | .00 | .00 | .04 | .00 | .00 | .00 |
| 27 | .00 | .01 | .00 | .00 | .00 | .00 | .66 | .00 | .00 | .30 | .00 | .00 |
| 28 | .00 | .06 | .00 | .00 | .00 | .00 | .01 | .00 | .00 | .18 | .00 | .00 |
| 29 | .00 | .07 | .00 | .00 | -- | .55 | .00 | .00 | .00 | .02 | .00 | .07 |
| 30 | .06 | .29 | .00 | .00 | -- | .00 | .00 | .00 | .00 | .00 | .00 | .00 |
| 31 | .00 | -- | .00 | .00 | -- | .00 | -- | .00 | -- | .00 | .00 | -- |
| TOTAL | 6.10 | 1.41 | 0.82 | 0.08 | 1.33 | 1.83 | 3.40 | 4.18 | 2.57 | 4.50 | 6.11 | 1.50 |
| e Estimated |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |