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 - 20 | 20 - 40 | 40 - 60 | 60 - 80 | 80 - 100 | Tropical Forests | Value | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alabama | 69.5% | 16.4% | 14.0% | Coke | ||||||||
Alaska | 99.8% | 0.671% | Soda | |||||||||
Alberta | Pop | |||||||||||
Arizona | 92.2% | 7.76% | Soda | |||||||||
Arkansas | 87.2% | 12.8% | Coke | |||||||||
British Columbia | 2.52% | 0.699% | Pop | |||||||||
California | 99.9% | 0.408% | 0.184% | Soda | ||||||||
Colorado | 69.4% | 30.6% | Pop | |||||||||
Connecticut | 99.9% | Soda | ||||||||||
Delaware | 99.2% | 2.57% | Soda | |||||||||
District of Columbia | 100% | Soda | ||||||||||
Florida | 64.2% | 35.5% | 0.637% | 0.865% | 1.15% | Soda | ||||||
Georgia | 61.5% | 38.5% | 0.250% | Coke | ||||||||
Hawaii | 92.1% | 2.48% | 13.2% | 3.56% | 1.64% | Soda | ||||||
Idaho | 100% | Pop | ||||||||||
Illinois | 70.3% | 29.6% | Pop | |||||||||
Indiana | 62.9% | 37.1% | Pop | |||||||||
Iowa | 50.0% | 50.0% | Pop | |||||||||
Kansas | 68.1% | 31.5% | Pop | |||||||||
Kentucky | 4.42% | 60.5% | 35.1% | Coke | ||||||||
Louisiana | 30.4% | 69.5% | Coke | |||||||||
Maine | 40.0% | 59.8% | 0.825% | Soda | ||||||||
Manitoba | Pop | |||||||||||
Maryland | 99.3% | 2.92% | Soda | |||||||||
Massachusetts | 99.5% | 5.64% | 0.220% | Soda | ||||||||
Michigan | 34.8% | 64.8% | Pop | |||||||||
Minnesota | 23.4% | 72.5% | 4.03% | Pop | ||||||||
Mississippi | 10.9% | 74.0% | 15.1% | Coke | ||||||||
Missouri | 23.4% | 62.5% | 14.1% | Soda | ||||||||
Montana | 100% | Pop | ||||||||||
Nebraska | 88.6% | 11.4% | Pop | |||||||||
Nevada | 100% | Pop | ||||||||||
New Brunswick | 0.602% | Pop | ||||||||||
New Hampshire | 1.24% | 98.7% | Soda | |||||||||
New Jersey | 19.5% | 80.3% | 1.77% | Soda | ||||||||
New Mexico | 90.2% | 9.71% | Coke | |||||||||
New York | 61.6% | 38.3% | 3.00% | Soda | ||||||||
Newfoundland and Labrador | 1.91% | Pop | ||||||||||
North Carolina | 99.9% | 1.08% | Soda | |||||||||
North Dakota | 29.5% | 70.5% | Pop | |||||||||
Northwest Territories | Pop | |||||||||||
Nova Scotia | 3.14% | Pop | ||||||||||
Nunavut | Other | |||||||||||
Ohio | 3.97% | 96.0% | Pop | |||||||||
Oklahoma | 3.41% | 35.1% | 46.0% | 15.5% | Pop | |||||||
Ontario | Pop | |||||||||||
Oregon | 100% | 0.120% | Pop | |||||||||
Pennsylvania | 6.15% | 93.9% | Pop | |||||||||
Prince Edward Island | 19.7% | Pop | ||||||||||
Québec | Other | |||||||||||
Rhode Island | 99.3% | 4.44% | Soda | |||||||||
Saskatchewan | Pop | |||||||||||
South Carolina | 99.9% | Coke | ||||||||||
South Dakota | 22.1% | 76.0% | 1.85% | Pop | ||||||||
Tennessee | 41.3% | 58.7% | Coke | |||||||||
Texas | 16.8% | 43.9% | 36.9% | 2.38% | Coke | |||||||
Utah | 100% | Soda | ||||||||||
Vermont | 77.1% | 22.6% | Soda | |||||||||
Virginia | 10.3% | 89.6% | 0.818% | Soda | ||||||||
Washington | 99.9% | 1.05% | Pop | |||||||||
West Virginia | 48.2% | 51.8% | Pop | |||||||||
Wisconsin | 13.1% | 53.1% | 33.7% | Soda | ||||||||
Wyoming | 87.7% | 12.3% | Pop | |||||||||
Yukon | Pop | |||||||||||
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