A second morning flight — this one to Seattle — was also delayed because the same plane that flies to Los Angeles is typically used for the Seattle journey, Stout said. Alaska Airlines was able to bring in a backup plane to take Seattle-bound passengers to their destination about an hour behind schedule, he said.
Official lows in Healdsburg hit 24 degrees, while lows in Petaluma hit 19 degrees in Petaluma, 30 degrees in Pt. Reyes, 31 degrees in Bodega Bay and 24 degrees in Sebastopol.
In Napa County, Calistoga's low was 30 degrees while down valley in downtown Napa, it reached 24 degrees. and in parts of Graton and Petaluma it got down to 19 degrees, said Benjamin.
Cold Weather Hits Sonoma County
The relative warm spots early Monday were in the areas of Occidental and Bodega Bay, with 31 degrees, and Cazadero at 32 degrees.
"If you want to call that warm ..." said Benjamin.
The morning lows were falling 15-20 degrees below normal.
Despite the chilly temperatures, no records were broken Monday.
"Back in 1972 we had some really really cold temperatures," he said.
Santa Rosa that Dec. 9, 1972 morning dipped to 16 degrees.
The weather service issued a freeze warning through 9 a.m. today and another one to start at 10 p.m. tonight. Yet another such warning is probable for Tuesday.