Cold Morning?

Or just white balance? I was playing with the different WB settings this morning at the Christmas Houseparty event. This was taken from my bedroom window. Actually, the weather has been surprisingly warm, considering the time of year.

I am now back home, and very, very tired, having gone to bed rather late last night. The journey was pleasantly shorter (helped by my fatigue) than expected. But now I have arrived home, and it is the middle of the afternoon, I am too tired to do anything to fill in the rest of the day. Does anyone else get that feeling when they get home from holiday in the middle of the day?