This doc is weather for Dec, 2009 in San Antonio, TX, from the Weather Channel.
For the specific period of Fri, Dec 18 to the end of the year, this is what it shows....
Fr 12/18 Hi 67, Lo 46, Fog
Sa 12/19 Hi 65, Lo 40, Mostly Sunny
Su 12/20 Hi 66, Lo 35, Sunny
Mo 12/21 Hi 69, Lo 36, Mostly Sunny
Tu 12/22 Hi 72, Lo 55, Mostly Sunny
We 12/23 Hi 72, Lo 57, Cloudy, Precip .5 in
Th 12/24 Hi 54, Lo 41, Windy
Fr 12/25 Hi 50, Lo 32, Mostly Sunny
Sa 12/26 Hi 60, Lo 33, Mostly Sunny
Su 12/27 Hi 61, Lo 33, Overcast
Mo 12/28 Hi 57, Lo 36, Mostly Sunny
Tu 12/29 Hi 47, Lo 39, Rainy, Precip 0.16 in
We 12/30 Hi 59, Lo 42, Mostly Sunny
Th 12/31 Hi 75, Lo 36, Windy