From ABC 33/40's James Spann page for September 5th:
ALL-TIME RECORD HIGH: On this date in 1925, the hottest temperatures ever recorded in the State of Alabama occurred at Centreville in Bibb County as the temperature soared to 112°. Every recording station in the state recorded a high of at least 100° that day. The summer of 1925 was blistering hot and the scorching temperatures were preceded by very dry conditions as much of Alabama was experiencing drought. That is how you get the hottest temperatures in the Deep South, heat waves are preceded by drought conditions, as dry air can get hotter than moist air. One last fact, Alabama is one of only two states to record its all-time record high in one of the non-traditional summer months of June, July, and August. The other state is Hawaii, which recorded its all-time record high of 100° in April.