Here are just a few pictures of what Christmas looks like in Hermosillo. There are many pictures I did not include: last minute crowds shopping in the "Centro," down town area of shops and markets, red Nochebuena plants (Poinsetta as known in the US) lining store windows and churches, or a bowl of warm Menudo or Posole soup accompanied by tamales, both traditional holiday meals.
However, here are just a few pics of what I saw for Christmas (very much through US Christmas eyes).

Posada shared with friends:
Pre-Christmas holidday get together or party, includes a piƱata
(A pastorela is a teatric presentation in which the devil attempts to thwart the shepherds journey to Bethleham to see the baby Jesus. It is incorporates an element of comedy in that it includes humor (local and/or present day political and other jokes) not relates to the Nativity story.)
Another Nativity scene done by the city
The Christmas tree in my house...it made me think of a palm tree. I thougth it was pretty funny...a cross between a palm and pine. Perfect for here! However, it was soon fixed and we had a very nice full Christmas tree in the house.
In front of the main plaza and Cathedral
"Please don't make noise. Santa Claus is sleeping." (Accompanied by him snoring!) Santa's House display on Christmas day.

