Thunderstorm Occurrence
North AmericaPhysical EnvironmentThunderstorm occurrence in North America
NOAAThunderstorms per year in North America: The highest occurrence region (light brown), includes Texas, Oklahoma, and Kansas. Western U.S.(California, Nevada), and northern Canada (Yukon, Northwest Territories), have the lowest occurrences (black).
100 and above | 81–100 | 71–80 | 61–70 | 51–60 | 41–50 | 31–40 | 21–30 | 11–20 | 6–10 | 2–5 | 1 and below | 0-5 | 5-10 | 10-20 | 20-40 | 40-80 | Not available | Least ethnically diverse | Moderately ethnically diverse | More ethnically diverse | |
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Alaska | 7.66% | 55.2% | 19.9% | 13.5% | 44.9% | 31.7% | 4.93% | 99.9% | |||||||||||||
Arizona | 8.64% | 10.8% | 6.36% | 10.3% | 8.92% | 4.76% | 27.8% | 70.8% | 1.40% | 100% | |||||||||||
Utah | 6.90% | 15.9% | 5.97% | 19.7% | 80.3% | 100% | |||||||||||||||
Yukon | 7.00% | 59.8% | 26.1% | 7.10% | 1.73% | 79.6% | 16.9% | 1.69% | 100% | ||||||||||||
Northwest Territories | 5.77% | 26.0% | 42.2% | 3.09% | 23.4% | 64.7% | 8.79% | 99.9% | |||||||||||||
District of Columbia | 100% | 100% | 100% | ||||||||||||||||||
Florida | 9.02% | 56.6% | 20.8% | 3.46% | 86.4% | 10.2% | 99.8% | ||||||||||||||
Idaho | 5.95% | 12.1% | 9.81% | 31.7% | 6.16% | 73.2% | 20.6% | 100% | |||||||||||||
New Hampshire | 94.4% | 5.56% | 100% | 100% | |||||||||||||||||
Rhode Island | 3.91% | 100% | 99.3% | ||||||||||||||||||
Vermont | 100% | 100% | 99.7% | 0.257% | |||||||||||||||||
Washington | 1.35% | 57.1% | 1.44% | 20.5% | 31.6% | 40.9% | 5.77% | 99.9% | |||||||||||||
Wyoming | 5.38% | 5.86% | 13.2% | 69.2% | 30.8% | 100% | |||||||||||||||
Nunavut | 1.70% | 21.4% | 1.54% | 33.5% | 53.8% | 3.41% | 99.7% | ||||||||||||||
Montana | 1.73% | 42.7% | 23.7% | 7.99% | 21.7% | 78.3% | 100% | ||||||||||||||
Maine | 79.8% | 14.7% | 5.13% | 98.4% | 99.8% | ||||||||||||||||
North Dakota | 95.7% | 4.33% | 100% | 100% | |||||||||||||||||
Kentucky | 41.2% | 58.8% | 100% | 100% | |||||||||||||||||
Nova Scotia | 19.0% | 8.02% | 76.3% | 99.5% | |||||||||||||||||
Virginia | 5.25% | 53.9% | 38.5% | 2.22% | 98.0% | 99.9% | |||||||||||||||
Delaware | 99.2% | 99.2% | 99.2% | ||||||||||||||||||
Prince Edward Island | 98.5% | 98.5% | |||||||||||||||||||
Saskatchewan | 18.8% | 50.7% | 20.5% | 12.0% | 88.0% | 100% | |||||||||||||||
Mississippi | 13.6% | 19.8% | 65.6% | 99.9% | 100% | ||||||||||||||||
West Virginia | 97.0% | 3.04% | 100% | 100% | |||||||||||||||||
Nebraska | 38.0% | 62.0% | 76.5% | 23.5% | 100% | ||||||||||||||||
Texas | 1.43% | 21.8% | 34.0% | 42.5% | 5.18% | 70.3% | 24.2% | 99.9% | |||||||||||||
Missouri | 100% | 100% | 100% | ||||||||||||||||||
Louisiana | 2.08% | 60.9% | 36.6% | 97.7% | 99.9% | ||||||||||||||||
Hawaii | 41.5% | 4.35% | 2.55% | 92.1% | |||||||||||||||||
North Carolina | 16.4% | 81.1% | 2.09% | 99.2% | 99.9% | ||||||||||||||||
Oregon | 7.84% | 63.3% | 28.9% | 22.6% | 52.1% | 25.2% | 100% | ||||||||||||||
New Brunswick | 31.5% | 64.2% | 2.38% | 98.9% | 99.8% | ||||||||||||||||
Alabama | 14.4% | 11.5% | 12.9% | 58.4% | 99.9% | 100% | |||||||||||||||
New Mexico | 3.65% | 6.22% | 12.8% | 2.01% | 14.3% | 49.3% | 50.7% | 100% | |||||||||||||
Kansas | 100% | 49.1% | 50.9% | 100% | |||||||||||||||||
Wisconsin | 19.7% | 79.8% | 5.33% | 94.0% | 100% | ||||||||||||||||
British Columbia | 1.59% | 35.7% | 19.7% | 2.10% | 6.58% | 74.8% | 16.1% | 0.142% | 2.52% | 97.4% | |||||||||||
Newfoundland and Labrador | 2.13% | 3.18% | 1.22% | 41.1% | 53.3% | 99.7% | |||||||||||||||
New Jersey | 28.5% | 71.2% | 99.8% | 99.8% | |||||||||||||||||
South Carolina | 1.10% | 75.7% | 23.2% | 99.9% | 99.9% | ||||||||||||||||
Michigan | 4.25% | 65.7% | 11.8% | 74.9% | 19.2% | 100% | |||||||||||||||
Alberta | 2.96% | 41.2% | 52.3% | 11.5% | 88.5% | 100% | |||||||||||||||
Connecticut | 99.9% | 99.9% | 99.9% | ||||||||||||||||||
Pennsylvania | 14.0% | 81.5% | 4.50% | 100% | 100% | ||||||||||||||||
Colorado | 13.8% | 53.9% | 10.3% | 3.14% | 39.8% | 60.2% | 100% | ||||||||||||||
Nevada | 13.2% | 33.3% | 53.5% | 59.6% | 40.4% | 100% | |||||||||||||||
Massachusetts | 91.5% | 6.67% | 88.5% | 0.206% | 99.5% | ||||||||||||||||
Georgia | 2.02% | 11.8% | 34.0% | 52.1% | 99.9% | 100% | |||||||||||||||
New York | 42.9% | 2.90% | 14.8% | 82.5% | 100% | ||||||||||||||||
Maryland | 11.3% | 16.7% | 71.1% | 98.7% | 99.3% | ||||||||||||||||
Québec | 9.73% | 2.25% | 18.5% | 22.7% | 14.4% | 2.23% | 49.6% | 46.9% | 99.9% | ||||||||||||
Manitoba | 3.86% | 21.7% | 27.1% | 47.3% | 0.241% | 99.7% | 100% | ||||||||||||||
Oklahoma | 94.0% | 6.04% | 37.6% | 62.4% | 100% | ||||||||||||||||
Tennessee | 95.3% | 4.67% | 100% | 100% | |||||||||||||||||
Ontario | 2.04% | 56.2% | 35.4% | 2.08% | 91.7% | 7.15% | 100% | ||||||||||||||
California | 46.0% | 7.90% | 27.9% | 67.0% | 31.4% | 99.9% | |||||||||||||||
Arkansas | 100% | 100% | 100% | ||||||||||||||||||
South Dakota | 61.9% | 38.1% | 100% | 100% | |||||||||||||||||
Ohio | 77.5% | 20.4% | 0.563% | 99.0% | 100% | ||||||||||||||||
Indiana | 1.92% | 97.6% | 100% | 100% | |||||||||||||||||
Minnesota | 22.5% | 75.0% | 2.49% | 50.3% | 49.6% | 100% | |||||||||||||||
Iowa | 30.7% | 69.3% | 2.53% | 97.5% | 100% | ||||||||||||||||
Illinois | 38.2% | 58.7% | 3.07% | 100% | 100% |
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