Even wizards like to keep warm and the Reed Chill Cheater company has just completed a large order for thermal suits for the cast of the current Harry Potter film, The Prisoner of Azkaban. A list of stars who have worn the suits include Madonna, Nicole Kidman and actors in the last James Bond film.
Chris Reed commented:
"Apparently it is for an incredibly wet Quidditch game. Four suits were made for Harry Potter himself - together there was 10 dry suits and 18 full sets of thermals."
I believe that will put to rest doubts about there being no Quidditch in PoA.