I think that's because lots of that yearly precip comes in a fine almost heavy mist like rain, that occurs nearly every day during the winter months. There are occasionally some 'moderate' rains but rarely anything like a heavy rain I used to see in the midwest.
The looters were out.. 22 reports .. 16 arrested .. homes, Target store, check cashing stores .... HANG the vermin that do this to the diaster afflicted!