COLQUITT, Ga. — The heat and the drought are so bad in this southwest corner of Georgia that hogs can barely eat. Corn, a lucrative crop with a notorious thirst, is burning up in fields. Cotton plants are too weak to punch through soil so dry it might as well be pavement.

Farmers with the money and equipment to irrigate are running wells dry in the unseasonably early and particularly brutal national drought that some say could rival the Dust Bowl days....

Climatologists say the great drought of 2011 is starting to look a lot like the one that hit the nation in the early to mid-1950s. That, too, dried a broad swath of the southern tier of states into leather and remains a record breaker....

“In the ’30s, you had the Depression and everything that happened with that, and drought on top,” said Donald A. Wilhite, director of the school of natural resources at the University of Nebraska in Lincoln and former director of the National Drought Mitigation Center. “The combination of those two things was devastating.”...