The last freeze observed at Atlanta's Hartsfield-Jackson International Airport, the official observation site for Atlanta, occurred on February 12, 2011. This is the earliest last freeze date since 1945, when the last freeze of that winter season was on February 9th. Since temperature records for Atlanta began in 1878, there have only been five other years when the last freeze of the winter season occurred before March 1st, namely February 5, 1880, February 9, 1945, February 26, 1961, February 16, 1985 and February 25, 1989. The average last freeze date for Atlanta is March 20th. Except for this year, all last freeze dates have been in March or late since 2000. The latest last freeze date in Atlanta since records have been kept was April 25, 1910.