Yes, exactly 14.25% of all Dec. 1sts are Mondays.
Monday
Whenever the 1st of a month is a Monday, the 25th of the same month is a Thursday.
zero
Yes, exactly 14% of all May 1sts are Mondays.
Monday
As of 2011, October 1 will next fall on Monday in 2012.
It was a Monday.
December 1st, 1975 fell on a Monday.
December 1, 1969 was a Monday.
Feb 1st 1971 was a Monday.
1st Mar 2021 is a Monday.
February 1st, 1960 was a Monday.