If you look at the calendar, Christmas will fall on Sunday in the following coming years: 2011, 2016, 2022, 2033, 2039, 2044 and 2050; less than 7 years most of the time and over a decade every twenty-eight years. So there is a repeating pattern: after 5 years, then 6 years, then 11 years, then 6 years and then the pattern starts over again.
The next year in which Christmas day will fall on a Sunday will be in 2016.
Yes, since 2016 it a leap year Christmas will fall on Friday in '15 and Sunday in '16.
December is a whole month, Sunday is just a day so 'December" can't fall on any day of the week as there are 4.25 weeks in the month. If you we're really asking how often Christmas falls on Sunday, since the millennium Christmas has so far been on a Sunday in years 2005 and in 2011; and in 2016 Christmas will again be on Sunday.
2017
In 1921 Christmas Day was on a Sunday.
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December 2016
2016
2017
twice Christmas falls on Sunday in 2016 and 2022, and it skips Sunday in 2028.
Yes, because in the Christmas of 2010 Christmas day was on a Saturday so Boxing Day was on Sunday
Yes, it fell on Sunday in 2011, and because of the leap year in 2016, Christmas will skip Saturday and fall on Sunday!