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 | -0.25 to 0.25 | 0.75 to 1.0 | 1.0 to 1.25 | 1.25 to 1.5 | 1.5 to 1.75 | Salt Marshes | Class | Rank | Metric tons | African American, Protestant | Hispanic, Catholic | Hispanic, Evangelical Protestant | Native American, Catholic | Non-Hispanic White, Catholic | Non-Hispanic White, Evangelical Protestant | Non-Hispanic White, Mainline Protestant | Non-Hispanic White, Mormon | Other | Arctic Cordillera | Tundra | Taiga | Hudson Plain | Boreal forests | Northwestern forested mountains | Marine west coast forest | Eastern temperate forests | Great Plains | Deserts and steppes | Mediterranean California | Southern semi-arid highlands | Temperate sierras | Tropical wet forests | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 65.3% | 51.1% | 35.9% | 21.6% | 5.21% | 0.311% | 1.20% | 0.159% | 0.444% | 2.10% | 0.594% | 1.47% | 4.11% | 3.35% | 3.31% | 3.50% | 2.93% | 2.02% | 2.96% | 21.4% | 1.96% | 6.84% | 22.1% | 11.9% | 32.1% | 29.3% | 5.59% | 34.8% | 38.2% | 26.9% | 39.7% | 6.89% | 11.3% | 14.5% | ||||