The 2010 Summer season has been extremely warm across the southeastern United States, with the State of Alabama experiencing one of the warmest summers on record. Statistics from this summer can be found here:
Central Alabama Summer Heat Statistics
NOAA Global Temperature Statistics
The Fall season officially begins at 10:09pm CDT on September 22, 2010. This is also termed the "Autumnal Equinox," in which the daylight and nightime hours are equal. After that time, nighttime hours will be longer than daylight hours until December 21st, which is termed the "Winter Solstice."
The start of the fall season also helps us to look forward to cooler temperatures, especially with the scorching summer that we have gone through. Below are the average, earliest, and latest dates of the first frost, first freeze, and first significant freeze (28 Degrees or Below) for Birmingham, Anniston, Tuscaloosa, and Montgomery from 1970-2009.