Looks like Monitor Pass is open, and Ebbetts Pass is almost open too.
Before April 1st
April 2nd to April 21st
April 22nd to April 27th
April 28th to May 4th
May 5th to May 12th
May 13th to May 20th
May 20th to May 25th
May 26th to May 31th
June 1 to June 10th
On or after June 11th
Looks like Monitor Pass is open, and Ebbetts Pass is almost open too.