It actually rained during the January 2016 show. Pack a raincoat and some plastic bags. Selection of comic books at this con is pretty impressive.
I also remember visiting Los Angeles in January and getting 90 degree weather.
No, it rained in 2015, 2016 was a beauty day.
In 2016, vendors outside closed early because of the rain.
http://boards.collectors-society.com/ubbthreads.php?ubb=showflat&Number=9127745&fpart=12
You are correct. I went last year and it rained. The outside dealers eventually all left early mainly due to the windy conditions.