the 7 to last day of December
In England people do open presents on Christmas day, the day after father Christmas has come
England's Christmas is on the 25th of December and boxing day, the day after (26th of December.)
Snow on Christmas Day
The day after Christmas is called Boxing Day, and is a public holiday.
Sunday
Christmas
This year (2009) there is a fair chance (I'd give it 40%) that there will be some snowfall somewhere in England on Christmas day.
In England, the Christmas public holiday is the 25th December, with Boxing day on the 26th December.
Christmas Day (25th December) occurs in England's winter, and can be very cold.
Canada England
28th December
25 of December