Temperatures ranged in the 40s across much of Los Angeles and Orange counties Sunday night. Inland areas, like Big Bear, saw temps drop as low as 18 degrees.
The second storm to hit the region in the last three days brought plenty of rain and along with it some trouble, including in the San Fernando Valley where it caused a slew of traffic collisions and some flooding.
Officials advised motorists to take their time driving to avoid accidents.
"Take a little bit of extra time to get where you're going and be safe and protect your loved ones while you're driving," said Officer Michael Talbot of the California Highway Patrol.
The rain kept authorities busy on the roadways, but some didn't let the inclement weather interfere with their plans.
"I love it," said Santa Monica resident Lindsey Martin, who spent her afternoon at the pier. "It's such a nice change. You get so sick of the sun. Bring it on, I love it. People shouldn't complain so much about it here."
The National Weather Service put out a warning that the region might get hail along with the heavy rain.
A frost advisory was issued for Palmdale.