4 PM and 80 deg F here in SOCAL.  
That said, it was 39 deg F when I walked the dog this AM.  No beard or balaclava, but I do have an 
OR Peruvian hat which keeps my head and ears warm enough and a nice wool scarf that I don't need at a balmy 39.  If it were colder I could easily add the scarf to hat and I'd be good to go much colder.  I'm totally acclimated to SOCAL so a light layer of wool baselayer under fleece and otherwise typical outerwear is routine for the early morning walk.   
All that said, I don't think frostbite is a issue here 
