36 degrees Fahrenheit on Northern California Coast

I was looking up the ocean temperatures and I got 54.7 degrees Fahrenheit which seems pretty cold but also makes sense in that we just got 36 degrees here on the northern Coast too air temperature. I went outside this morning and my hot tub spa cover was covered with frost along with any grass in the back yard and so I took pictures of this because this is the first time this season I have seen this. It never snows here on the coast because it never gets cold enough even though I have seen 6 to 8 inches of hail here once the size of the tip of my little finger piled up on my deck leading to the back yard before. But because of the ground temperatures here any hail likely will melt within 6 to 12 hours time always too.