Driving falls apart when it gets cloudy in So. Cal., but if it actually rains, then it is best just to stay home and lock the doors.
Having lived in both southern and northern California, I’d say it’s probably worse up here. Drivers in SoCal suck less than those in NorCal.
I wish I had a dollar for every driver I’ve seen on Bay Area freeways driving 10-15mph under the speed limit, hunched over the wheel with white knuckles. And that’s when it’s dry!