- World War II prompted the creation of National 4-H Mobilization Week in April and National 4-H Achievement Week. The "week" concept continued after the war with National 4-H Week.
- African American Home Demonstration clubs gained their own statewide organization called the State Federation of Negro Home Demonstration Clubs.
- The first Wildlife Conservation Camp for African Americans was held.
- The Home Demonstration organization and the Agricultural Extension Service began the cotton mattress program. Through it farmwomen learned how to make mattresses out of surplus cotton.
- 4-H started a scrap metal drive as part of the defense effort.
- 4-H Club membership reached 100,000.
- The 4-H Short Course was re-established with a new name, State 4-H Club Week.
- The first meeting of the 4-H Electric Congress was held for white children with the goal of promoting the electrification of rural areas in North Carolina.
- L. R. Harrill was selected by the United States Department of Agriculture to travel to Austria to create a national youth program modeled on the United States 4-H program.
- North Carolina 4-H Club Week was canceled due to a polio outbreak.
- White North Carolina 4-H Club members participated in the new International Farm Youth Exchange program (IFYE), later called the International 4-H Youth Exchange.