Temperature for December 1975
In December 1975 the average high temperature in San Antonio, TX was 65.6°F, and this was 0.0°F cooler than the average of 65.7°F. The hottest day in December 1975 was 5 December when the temperature reached 79.0°F. Overnight the average temperature in December is 44.7°F and in 1975 the average overnight temperature was 2.4°F cooler at 42.2°F.