Version history for Hereford, Richard, 2006, User's guide, software for reduction and analysis of daily weather and surface- water data: Tools for time series analysis of precipitation, temperature, and streamflow data: U.S. Geological Survey Open-File Report 2006-1101 [available on the World Wide Web at URL http://pubs.usgs.gov/of/2006/1101/ ]. Version 1.0 June 19, 2006 Intital release online at http://pubs.usgs.gov/of/2006/1101/