World Weather/Climate Extremes Website

Tornado: Calendar Month with greatest number of tornadoes

Record Value 543 tornadoes
Date of Event 5/2003
Length of Record 1950-present
Geospatial Location United States

Reference

http://www.spc.noaa.gov/faq/tornado/#History

Discussion

This record contains tornadoes observed through visual and radar observations

Previous Record

399 tornadoes, 6/1992

United States

Track map of the 543 tornadoes occurring in May, 2003