Temperature for December 1940
In December 1940 the average high temperature in San Antonio, TX was 65.9°F, and this was 0.2°F warmer than the average of 65.7°F. The hottest day in December 1940 was 28 December when the temperature reached 77.4°F. Overnight the average temperature in December is 44.7°F and in 1940 the average overnight temperature was 3.3°F warmer at 48.0°F.