The Washington Monument is open daily except July 4 and December 25.
Summer Hours: 9 a.m. to 10 p.m. (May 31 - September 6, 2010) with the last tour beginning before 9:45 p.m.
Rest of Year: 9 a.m. - 5 p.m. with the last tour beginning before 4:45 p.m.
Please note the following regulations with regard to visiting the Washington Monument:
No storage facility available
No Animals (except certified guide dogs)
No Suitcases or Large Backpacks
No Guns or Knives
No Strollers
No Food or Drink
No Mace or Aerosol Cans
Please notify a park ranger if you have a medical condition and/or device (e.g. pregnancy, pacemaker, insulin pump, et cetera) that requires special attention at the security screening facility.