Snow water equivalent (SWE) values are derived from measurements taken at individual snow course and SNOTEL data stations. The amount of water contained in the snow column is measured and expressed as percent of average. Snow water equivalent maps are available for the first of each month from January through June beginning in 2002.
View a map by choosing the month and year of interest from the dropdown box or by selecting from the thumbnails below. Asterisk (*) denotes missing map. January 2014 February 2014 March 2014 April 2014 May 2014 June 2014 January 2013 February 2013 March 2013 April 2013 May 2013 June 2013 January 2012 February 2012 March 2012 April 2012 May 2012 June 2012 January 2011 February 2011 March 2011 April 2011 May 2011 June 2011 January 2010 February 2010 March 2010 April 2010 May 2010 June 2010 January 2009 February 2009 March 2009 April 2009 May 2009 June 2009 January 2008 February 2008 March 2008 April 2008 May 2008 June 2008 January 2007 February 2007 March 2007 April 2007 May 2007 June 2007 January 2006 February 2006 March 2006 April 2006 May 2006 June 2006 January 2005 February 2005 March 2005 April 2005 May 2005 June 2005 January 2004 February 2004 March 2004 April 2004 May 2004 June 2004 January 2003 February 2003 March 2003 April 2003 May 2003 June 2003 January 2002 February 2002 March 2002 April 2002 May 2002 June 2002
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These maps are produced in partnership with the NRCS. Data are compiled by the Montana Snow Survey Program of the USDA Natural Resources Conservation Service. Please see the NRCS web site for explanations of their data collection programs. For additional information, contact: Lucas Zukiewicz, Hydrologist Natural Resources Conservation Service Lucas.Zukiewicz@mt.usda.gov (406) 587-6843
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