Temperature for December 2008
In December 2008 the average high temperature in San Antonio, TX was 68.7°F, and this was 3.0°F warmer than the average of 65.7°F. The hottest day in December 2008 was 9 December when the temperature reached 83.8°F. Overnight the average temperature in December is 44.7°F and in 2008 the average overnight temperature was 2.1°F cooler at 42.6°F.