LOCATION.-- Latitude 41°53'00", longitude 88°05'46" (NAD of 1927), in NW1/4SE1/4NE1/4 sec.09, T.39 N., R.10 E., Du Page County, Hydrologic Unit 07120004, on Country Side Street 0.2 mi west of President Street, and located behind the Wheaton Water Department pump station at Wheaton.

PERIOD OF RECORD.--

PRECIPITATION: July 1997 to current year.

GAGE.-- A 12-in.-diameter, heated, 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.

EXTREMES FOR PERIOD OF RECORD.--

PRECIPITATION: Maximum daily total, 4.13 in.(estimated), October 13, 2002.