i dont see how in december light travels farther or less far than in other months. i don't think someone can give youan exact answer, but if we can see other stars from, let's say, 5 lightyears, im pretty sure the sun is kinda like that
11322.75 light years according to my math. If you take how many light years in a day and then multiply buy 31 (days in December) you get 11322.75 light years in the month of December.