It has been in the low 70s and sunny in Napa where I live and forecast to be that way for the foreseeable future.
I arrived to find about 5" of snow accumulation, temperature at sunset about 21 deg. Went to the boat, snow drifts in the cockpit, ice on deck and dock. I have a Sesame combination lock on the companionway, the thumb wheels were frozen and would not turn. After warming the lock with my hands for a period ( and freezing my hands in the process) I got the wheels to turn, warming further I got the lock to unfreeze enough to open. But still no good! The companionway swinging doors swing out over the sill with little clearance and would not open due to the thick layer of ice frozen to the sill. I had to lift them off their hinges to get in - but now the companionway is wide open.
Fortunately my newest best friend in Norfolk turned the heat back on, so inside it was about 50 degrees and I could get my hands warmed up again. 50 was all the little 1100 watt heater could manage. I scraped enough of the ice off the sill to be able to reinstall the doors. To get the diesel heater going, I needed to turn on the master switch in the cockpit locker. I shoveled the snow off of the hatch, but again the locks were frozen. Using a small butane torch I have onboard, I melted the locks enough to get the hatch open and heater on.
Everything in the boat looks fine so far.
Virginia has the worst climate I have ever experienced. Horrible in Summer. Horrible in Winter. Horrible in Spring and Fall. That leaves, what? Water falls from the sky, wells up from the ground, condenses out of the air, freezes on the roads. It even rained inside the building where the boat was stored!