Children's Parade Carnival Day in U.S. Virgin Islands
Children's Parade Carnival Day in U.S. Virgin Islands is held on May 1. Carnival is for everyone, from small children to adults. This event in the first decade of the month may is annual.
Honesty Day on April 30 (United States);
Green Up Day in Vermont on May 1 (observed on the first Saturday of May, is a statewide effort in the US state of Vermont to clean up roadside trash);
National Pet Week in US on May 2 (First Full Week in May);
Mayday for Mutts on May 2 (First Sunday in May)