Public holidays
1855, USA, Colorado
| # | Date | Public holiday |
|---|---|---|
| 1 | Monday, January 1, 1855 | New Year's Day |
| 2 | Monday, January 15, 1855 | Martin Luther King Day |
| 3 | Monday, February 19, 1855 | Washington's Birthday |
| Friday, March 30, 1855 | César Chávez Day (observance) | |
| 4 | Saturday, March 31, 1855 | César Chávez Day |
| 5 | Monday, May 28, 1855 | Memorial Day |
| 6 | Tuesday, June 19, 1855 | Juneteenth National Independence Day |
| 7 | Wednesday, July 4, 1855 | Independence Day |
| 8 | Monday, September 3, 1855 | Labor Day |
| 9 | Monday, October 8, 1855 | Columbus Day |
| 10 | Sunday, November 11, 1855 | Veterans Day |
| Monday, November 12, 1855 | Veterans Day (observance) | |
| 11 | Thursday, November 22, 1855 | Thanksgiving |
| 12 | Tuesday, December 25, 1855 | Christmas |