The Bay Area woke up to another chilly morning on Thursday with temperatures hovering around the freezing mark. And in some places, it actually was freezing.
Before 6 a.m., the temperature hit 19 degrees in Napa even if it was just for a moment.
Temps clocked in at 30 degrees in San Jose, 32 on the Peninsula and the East Bay, and a "balmy" 37 in San Francisco. It was so icy in the South Bay, crews were de-icing planes at Norm Mineta International Airport in San Jose. And there were black ice warnings in Walnut Creek at Ygnacio Valley Road, where patches of ice were making it dangerous for drivers.
But hey, we could be in Bismark, N.D., where an arctic blast is sweeping across the Northern Plains, or Denver where there are no signs of above-freezing temperatures for the next five days.
Freezing is an unusual word for those living in sunny California most of the time. But this week, there are freeze warnings for Sonoma, Napa, Solano and Marin counties.
Lows in the Bay Area are starting in the mid-30s, with highs to reach the low 50s. It may even rain a bit on Friday.
While the brutal weather is hard on the homeless and crops, it is great for at least one subgroup: Skiers, snowboarders and anyone heading up to places like Boreal Mountain Resort, where outdoor enthusiasts were saying things like: "Magic, winter is here."
"It's super fun," Gabe Taube, a UC Berkeley student playing hooky, said on Thursday, after a day of skiing on powdery slopes. "This is an awesome park. This was a great day."
NBC Bay Area's Jodi Hernandez and the Associated Press contributed to this report.