LOCATION.-- Latitude 41°46'52", longitude 88°13'59" (NAD of 1927), SE1/4NE1/4NE1/4 sec.17, T.38 N., R.9 E., Du Page County, Hydrologic Unit 07120004, on North Aurora Avenue 1.4 mi south of State Highway 59, and located at the Naperville Township Highway Division, at Naperville.

PERIOD OF RECORD.--

PRECIPITATION: July 1997 to December 2003.

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.

EXTREMES FOR PERIOD OF RECORD.--

PRECIPITATION: Maximum daily total, 2.74 in., October 13, 2001.