i live in south florida. and i usually wait untill late febuary-march to re-pot. depends what the night time low temp's are. we normally only have a few weeks in the (40's night time lows) like 3-4 nights in a row then it will warm up again(50's night time lows) then cool off again. i have found if i wait untill summer it gets to hot and the new potting medium doesn't hold enough water.
you just need to see what works best for your situation.