At the end when Mr Stewart walks away from the toy store you can see he has difficulty walking, but in the wide shot of the street he is walking like a young man, not bothered by the snow at all.
Towards the end the Huckles along with Will and Quinn arrive back at the foster home in heavy snow, however when Mrs Gibson lets them in there is not a flake of snow to be seen on them.
Paws mentioned to everyone at the workshop as "Deliver presents to all of the children". In actuality, Christmas is celebrated in most countries except for Japan, China, parts of Asia, the middle east, Turkey and some parts of Africa. Some countries either celebrate Christmas as an observance and some don't celebrate it at all.
It is stated that Santa delivers presents all in one night. In some countries, it's already Christmas Day and some places are still Christmas Eve. The Scandinavian countries celebrate it on the 24th of December.