Average Number of Tornado Incidences per Year (U.S.)
North AmericaPhysical EnvironmentTornado prevalence in the United States per 1,000 square miles per year
Tornado ArchiveA map shows average tornado incidences per year in the U.S. The highest incidences (dark brown) are in Oklahoma, parts of Texas, Kansas, and Missouri. The lowest incidences (light yellow) are in Alaska, Washington, Oregon, and California.
Less than 1 | 1–5 | 6–10 | 11–15 | More than 15 | Tropical Forests | Class | Rank | Percentage of annual change | No data | Arid and low water use | Low (<10%) | Low-medium (10-20%) | Medium-high (20-40%) | High (40-80%) | Extremely high (>80%) | Alabama, United States of America | Alaska, United States of America | Alberta, Canada | Arizona, United States of America | Arkansas, United States of America | British Columbia, Canada | California, United States of America | Colorado, United States of America | Connecticut, United States of America | Delaware, United States of America | District of Columbia, United States of America | Florida, United States of America | Georgia, United States of America | Hawaii, United States of America | Idaho, United States of America | Illinois, United States of America | Indiana, United States of America | Iowa, United States of America | Kansas, United States of America | Kentucky, United States of America | Kiribati, Kiribati | Louisiana, United States of America | Maine, United States of America | Manitoba, Canada | Marquesas Islands, French Polynesia | Maryland, United States of America | Massachusetts, United States of America | Michigan, United States of America | Minnesota, United States of America | Mississippi, United States of America | Missouri, United States of America | Montana, United States of America | Nebraska, United States of America | Nevada, United States of America | New Brunswick, Canada | New Hampshire, United States of America | New Jersey, United States of America | New Mexico, United States of America | New York, United States of America | Newfoundland and Labrador, Canada | North Carolina, United States of America | North Dakota, United States of America | Northwest Territories, Canada | Nova Scotia, Canada | Nunavut, Canada | Ohio, United States of America | Oklahoma, United States of America | Ontario, Canada | Oregon, United States of America | Pennsylvania, United States of America | Prince Edward Island, Canada | Québec, Canada | Rhode Island, United States of America | Saskatchewan, Canada | South Carolina, United States of America | South Dakota, United States of America | Tennessee, United States of America | Texas, United States of America | Utah, United States of America | Vermont, United States of America | Virginia, United States of America | Washington, United States of America | West Virginia, United States of America | Wisconsin, United States of America | Wyoming, United States of America | Yukon, Canada | |
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| 65.3% | 51.1% | 35.9% | 21.6% | 5.21% | 1.15% | 0.654% | 3.65% | 47.2% | 4.86% | 6.22% | 9.97% | 14.9% | 46.6% | 67.2% | 99.9% | 99.9% | 53.2% | 96.8% | 99.7% | 99.5% | 82.5% | 16.8% | 91.4% | 98.2% | 40.5% | 90.3% | 54.1% | 30.9% | 48.2% | 45.8% | 43.9% | 15.5% | 2.03% | 48.2% | 45.7% | 99.9% | 4.13% | 26.2% | 57.0% | 99.9% | 60.6% | 32.3% | 54.4% | 64.7% | 27.8% | 99.9% | 46.7% | 34.6% | 98.5% | 99.9% | 83.0% | 20.5% | 53.0% | 32.6% | 75.1% | 97.2% | 97.9% | 39.9% | 99.9% | 83.0% | 57.6% | 82.6% | 93.5% | 72.9% | 10.9% | 100% | 34.6% | 31.2% | 45.6% | 78.1% | 100% | 50.4% | 32.4% | 99.2% | 21.0% | 99.8% | 99.6% | 99.9% | ||||