Temperature
The warmest month in Lackland Air Force Base Kelly Field Annex, San Antonio, Texas is August with an average high temperature of 95.8°F. The hottest day on record was August 28 2011 when the temperature hit 110.1°F. During January the overnight temperature drops to an average of 42.3°F with the lowest temperature of 3.9°F being recorded on January 31 1949.