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Texas Drought Conditions Texas County Burn Bans Animated Images Map Type Start Date End Date Resolution Accumulation Period DM Overlay Percent Normal SPI SPI Blend SPI Blend 1-Week Change February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 4 km Grid County 2 Months 6 Months 12 Months 18 Months 24 Months Total Minimum No Yes Instant Comparison of Two Images Map Type First Date Second Date Resolution Accumulation Period DM Overlay Percent Normal SPI SPI Blend SPI Blend 1-Week Change February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 4 km Grid County 2 Months 6 Months 12 Months 18 Months 24 Months Total Minimum No Yes Percent of Normal Precipitation Date Resolution Accumulation Period DM Overlay February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 4 km Grid County 2 Months 6 Months 12 Months 18 Months 24 Months No Yes Standardized Precipitation Index (SPI) Date Resolution Accumulation Period DM Overlay February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 4 km Grid County 2 Months 6 Months 12 Months 18 Months 24 Months No Yes SPI Blend Date Resolution Accumulation Period DM Overlay February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 4 km Grid County 2 Months 6 Months 12 Months 18 Months 24 Months Total Minimum No Yes SPI Blend 1-Week Change Date Resolution Accumulation Period DM Overlay February 13, 2012 February 7, 2012 January 31, 2012 January 24, 2012 January 17, 2012 January 10, 2012 January 3, 2012 December 27, 2011 December 20, 2011 December 13, 2011 December 6, 2011 November 29, 2011 November 22, 2011 November 15, 2011 November 8, 2011 November 1, 2011 October 25, 2011 October 18, 2011 October 11, 2011 October 4, 2011 September 27, 2011 September 20, 2011 September 13, 2011 September 6, 2011 August 30, 2011 August 23, 2011 August 16, 2011 August 9, 2011 August 2, 2011 July 26, 2011 July 19, 2011 July 12, 2011 July 5, 2011 June 28, 2011 June 21, 2011 June 14, 2011 June 7, 2011 May 31, 2011 May 24, 2011 May 17, 2011 May 10, 2011 May 3, 2011 April 26, 2011 April 19, 2011 April 12, 2011 April 5, 2011 March 29, 2011 March 22, 2011 March 15, 2011 March 8, 2011 March 1, 2011 February 22, 2011 February 15, 2011 February 8, 2011 February 1, 2011 January 25, 2011 January 18, 2011 January 11, 2011 January 4, 2011 December 28, 2010 December 21, 2010 December 14, 2010 December 7, 2010 November 30, 2010 November 23, 2010 November 16, 2010 November 9, 2010 November 2, 2010 October 26, 2010 October 19, 2010 October 12, 2010 October 5, 2010 September 28, 2010 September 21, 2010 September 14, 2010 September 7, 2010 August 31, 2010 August 24, 2010 August 17, 2010 August 10, 2010 August 3, 2010 July 27, 2010 July 20, 2010 July 13, 2010 July 6, 2010 June 29, 2010 June 22, 2010 June 15, 2010 June 8, 2010 June 1, 2010 May 25, 2010 May 18, 2010 May 11, 2010 May 4, 2010 April 27, 2010 April 20, 2010 April 13, 2010 April 6, 2010 March 30, 2010 March 23, 2010 March 16, 2010 March 9, 2010 March 2, 2010 February 23, 2010 February 16, 2010 February 9, 2010 February 2, 2010 January 26, 2010 January 19, 2010 January 12, 2010 January 5, 2010 December 29, 2009 December 22, 2009 December 15, 2009 December 8, 2009 December 1, 2009 November 24, 2009 November 17, 2009 November 10, 2009 November 3, 2009 October 27, 2009 October 20, 2009 October 13, 2009 October 6, 2009 September 29, 2009 September 22, 2009 September 15, 2009 September 8, 2009 September 1, 2009 August 25, 2009 August 18, 2009 August 11, 2009 August 4, 2009 July 28, 2009 July 21, 2009 July 14, 2009 July 7, 2009 June 30, 2009 June 23, 2009 June 16, 2009 June 9, 2009 June 2, 2009 May 26, 2009 May 19, 2009 May 12, 2009 May 5, 2009 April 28, 2009 April 21, 2009 April 14, 2009 April 7, 2009 March 31, 2009 March 24, 2009 March 17, 2009 March 10, 2009 March 3, 2009 February 24, 2009 February 17, 2009 February 10, 2009 February 3, 2009 January 27, 2009 January 20, 2009 January 13, 2009 January 6, 2009 December 30, 2008 December 23, 2008 December 16, 2008 December 9, 2008 December 2, 2008 November 25, 2008 November 18, 2008 November 11, 2008 November 4, 2008 October 28, 2008 October 21, 2008 October 14, 2008 October 7, 2008 September 30, 2008 September 23, 2008 September 16, 2008 September 9, 2008 September 2, 2008 August 26, 2008 August 19, 2008 August 12, 2008 August 5, 2008 July 29, 2008 July 22, 2008 July 15, 2008 July 8, 2008 July 1, 2008 June 24, 2008 June 17, 2008 June 10, 2008 June 3, 2008 May 27, 2008 May 20, 2008 May 13, 2008 May 6, 2008 April 29, 2008 April 22, 2008 April 15, 2008 April 8, 2008 April 1, 2008 March 25, 2008 March 18, 2008 March 11, 2008 March 4, 2008 February 26, 2008 February 19, 2008 February 12, 2008 February 5, 2008 January 29, 2008 January 22, 2008 January 15, 2008 January 8, 2008 January 1, 2008 4 km Grid County 2 Months 6 Months 12 Months 18 Months 24 Months Total Minimum No Yes

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