Temperature for December 1957
In December 1957 the average high temperature in San Antonio, TX was 68.2°F, and this was 2.6°F warmer than the average of 65.7°F. The hottest day in December 1957 was 10 December when the temperature reached 80.1°F. Overnight the average temperature in December is 44.7°F and in 1957 the average overnight temperature was 3.0°F warmer at 47.6°F.