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Illinois Water Science Center



Water Science Center


USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Real-Time Precipitation Data for Illinois

Map Web Site - updated hourly, includes USGS and other agency real-time rain gage data and National Weather Service multi-sensor precipitation image overlays

Table Web Site - updated as data are received, includes USGS and other agency real-time rain gage data

rainfall map image
Map Web Site Example
    rainfall table image
Table Web Site Example

Current data typically are recorded at 5- to 60-minute intervals, stored onsite, and then transmitted to USGS offices every 30 minutes to 4 hours, depending on the data relay technique used. Recording and transmission times may be more frequent during critical events. Data from current sites are relayed to USGS offices via satellite, telephone, radio telemetry, and/or the internet and are available for viewing within minutes of arrival.

Missing values are not included in the precipitation totals; therefore, the totals shown may be less than the actual amounts. Some data collected during cold weather may be affected by snow, and errors in water-equivalent values may result. All real-time data are provisional and subject to revision.

The USGS and other agency rain-gage data are available at USGS Real-Time Water Data for the Nation. The NWS precipitation image overlays shown in the map are provided by the National Weather Service.

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Page Last Modified: Wednesday, 06-Mar-2013 13:21:42 CST