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These data and software were developed jointly by the National Climatic Data Center (NCDC) and NOAA's Forecast Systems Laboratory (FSL). Data files contain hourly precipitation amounts for more than 2500 active stations and close to 7000 total stations. The period of record is 1948 through June 1998 although some stations begin in 1900. Access software, available for most UNIX and DOS platforms, is included to extract data from the CDROM archive and, if needed, can be used to summarize the data into daily or monthly precipitation quantities. Display software (java-enabled web browser required) will generate zoomable map and time seriesgraphics. Additional information about the data archive and access software is available from the FSL.
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