We were at WDW from December 18-28 in 2002. We had a few sprinkles a couple of days in the early morning but not enough to really matter. However, on Christmas Eve we were in the worst rain I have seen in ages!! We were at Epcot and by the time we got back to the cabin, we were drenched! Our shoes didn't dry for days. Not only was it raining, but there was thunder, lightning, and strong winds. It was so bad that the second and third Candlelight Processional and IllumiNations were cancelled for that evening. Now, this may have been just a bad weather day and maybe it doesn't happen often.