Hello! We are getting closer and closer to our December trip, and we are still trying to decide if we are going to drive down the I-5 from WA to CA or drive along the coast. I am having a really hard time finding a good site that can give me a history of the weather patterns in the 2nd and 3rd week of December. I was just wondering if anyone has a favorite site they use to figure this stuff out? Any suggestions would be great. We'd love it if we could just cruise straight down the I-5, but we don't want to get stranded or terribly delayed.