Okay, this has been an issue on every vanilla server it seems. I understand that it isn't technically a bug, but it is just all the weather types being split evenly. The problem is, with 3 types of rain, that means that it is raining 75% of the time in these areas. Could that be split among like, 15% total? (5% of each type of rain, 85% sunny.) That not be enough, but I just ask that the rate of rain be lowered significantly. It has been the main "non-blizzlike" issue with many servers for me.
Thanks & keep up the good work!