List of USPS Holidays for 2013 – No mail delivery

• Tuesday, January 1 – New Year’s Day (observed)
• Monday, January 21 – Martin Luther King, Jr. birthday (observed)
• Monday, February 18 – Washington’s birthday (President’s Day)
• Monday, May 27 – Memorial Day
• Thursday, July 4 – Independence Day
• Monday, September 2 – Labor Day
• Monday, October 14 – Columbus Day
• Monday, November 11 – Veterans’ Day (observed)
• Thursday, November 28 – Thanksgiving Day
• Wednesday, December 25 – Christmas Day

This page is a great resource, Federal holidays through 2020 are listed, here is 2014
http://www.opm.gov/operating_status_schedules/fedhol/2014.asp