Public holidays
1641, USA, Colorado
| # | Date | Public holiday |
|---|---|---|
| 1 | Tuesday, January 1, 1641 | New Year's Day |
| 2 | Friday, February 22, 1641 | Washington's Birthday |
| 3 | Sunday, March 31, 1641 | César Chávez Day |
| Monday, April 1, 1641 | César Chávez Day (observance) | |
| 4 | Thursday, May 30, 1641 | Memorial Day |
| 5 | Thursday, July 4, 1641 | Independence Day |
| 6 | Monday, September 2, 1641 | Labor Day |
| 7 | Wednesday, December 25, 1641 | Christmas |