Many areas of San Diego County saw below freezing temperatures Tuesday night.
A frost advisory has been issued for inland areas, until 8 a.m. Wednesday and will likely be issued again for tonight.
NBC 7 Meteorologist Jodi Kodesh advises that you take care walking to your car, this morning, as patchy frost may make for slippery grass and sidewalks.
"Our high today will be approximately 62 degrees," Kodesh said. "When that sun sets, about 5 p.m., we're going to see temperatures plummet again."
On Tuesday, temperatures were so low in some parts of the county, people had to put their outdoor plans on hold. More than 140 golfers at The Vineyard Golf Club in Escondido had to delay the start time for a year-end scramble tournament.
Tee time was scheduled for 8 a.m., but it had to be postponed to 8:20 a.m. until the frost melted on the greens. One man who participated in the tourney said the first couple holes were tough in the bitter cold.
"Freezing yeah. You were hitting the balls like hitting a rock, you know. But an hour later everything started melting. It was pretty cool," Poway Resident Mike Shannon said.
NBC 7 called the San Diego Farm Bureau to see how local crops held up after night one of the frost advisory.
Andy Lyall, owner of Lyall Enterprises, which grows oranges and avocados, said he turned fans on his crops overnight for a couple hours to keep them from freezing. But he added that he begins to worry when temperatures get much colder and for longer periods at night - something that only happens every once in a while.