What approximate month was it when Babylon exploded, and when it re-opened?

I was thinking .... Babylon bombing  was spring-ish (because I assumed the election was in June, and because there was no snow and while people wore jackets, they weren't wearing heavy coats, although they WERE slightly earlier in the season), and thus Babylon re-opening was late summerish.

I want 8 months or so between the bombing of Babylon and Christmas. I just want to know if there is any reason that would have to be wrong.

And please don't make me watch S5 again to find out. :(