Record low temperatures combined with rain overnight to create snow throughout the Bay Area at elevations as low as a few hundred feet, National Weather Service Chris Stumpf said.
While most of the snow has since melted, some neighborhoods on the Peninsula at higher elevation still looked white Saturday afternoon.
Sam Ostrander, an employee at Alice's Restaurant on Skyline Boulevard in Woodside, said it looked "really snowy still" Saturday afternoon, with snow still covering the ground and treetops and roofs of nearby homes and businesses.
Ostrander said she saw many people building snowmen on the sides of the road Saturday morning.
"They were everywhere," she said.
At the Thomas Fogarty Winery and Vineyards further south on Skyline, employees tried to hit passersby with snowballs, tasting room manager Rick Davis said.
"There was enough to make a few snowballs," Davis said, adding that the snow was good for throwing since "it seemed fairly dry, not wet and slushy."
Besides being used as a projectile, the snow served another purpose for the winery.
"We had enough to put bottles of wine in to chill them down," Davis said.
There wasn't much snow just to the east at the Palo Alto Hills Golf and Country Club, but it was cold enough to force the golf course to delay opening Saturday morning due to frost, employee Joe Dolby said.
There wasn't much snow on the actual course and it had all evaporated by the time Dolby arrived at 6 a.m. But he said he could still see "like a quarter-, half-inch on some houses" on nearby hills.
The snow was due to record low temperatures throughout the Bay Area. San Jose tied a 114-year-old record when the temperature dropped to 33 degrees overnight, the coldest it had been on a Feb. 26 since 1897.
San Francisco and San Francisco International Airport also tied decades-old record lows, while Oakland broke its record low temperature for Feb. 26. The temperature dropped to 35 degrees, beating the previous record of 38 degrees in 1987.