1934–35 North American drought
Excessive heat and drought problems affected the United States in 1934–35 from the Rocky Mountains, Texas and Oklahoma to parts of the Midwestern, Great Lakes, and Mid-Atlantic states. These droughts and excessive heat spells were parts of the Dust Bowl and concurrent with the Great Depression in the United States.
Source: Wikipedia — 1934–35 North American drought (CC BY-SA 4.0)