Historic USGS Storages

United States Geologic Survey (USGS) daily storage data for Lake Almanor is published annually as USGS gage 11399000 "Lake Almanor at Prattville, CA" and is viewed as the "official" record. Lake Almanor USGS storage data is available from 1913 on but little is available online. USGS annual reports are published on a Water Year basis (October 1 to September 30).

Daily lake storages using USGS Data

PDF Files

Water Year 2018	Water Year 2019
Water Year 2015	Water Year 2016	Water Year 2017
Water Year 2012	Water Year 2013	Water Year 2014
Water Year 2009	Water Year 2010	Water Year 2011
Water Year 2006	Water Year 2007	Water Year 2008
Water Year 2003	Water Year 2004	Water Year 2005
Water Year 2000	Water Year 2001	Water Year 2002
Water Year 1997	Water Year 1998	Water Year 1999
Water Year 1994	Water Year 1995	Water Year 1996
Water Year 1991	Water Year 1992	Water Year 1993
Water Year 1988	Water Year 1989	Water Year 1990
Water Year 1985	Water Year 1986	Water Year 1987
Water Year 1982	Water Year 1983	Water Year 1984
Water Year 1979	Water Year 1980	Water Year 1981
Water Year 1976	Water Year 1977	Water Year 1978
Water Year 1973	Water Year 1974	Water Year 1975
Water Year 1970	Water Year 1971	Water Year 1972
Water Year 1967	Water Year 1968	Water Year 1969
	Water Year 1965	Water Year 1966