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 | Iron Ore Mines | Major Karst Regions | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 7.66% | 55.2% | 19.9% | |||||||||||
District of Columbia | 100% | |||||||||||||
New Hampshire | 94.4% | 5.56% | ||||||||||||
Rhode Island | 3.91% | |||||||||||||
Vermont | 100% | |||||||||||||
Washington | 1.35% | 57.1% | 1.44% | |||||||||||
Montana | 1.73% | 42.7% | 23.7% | 7.99% | ||||||||||
Delaware | 99.2% | |||||||||||||
Prince Edward Island | 98.5% | |||||||||||||
Saskatchewan | 18.8% | 50.7% | 20.5% | |||||||||||
Louisiana | 2.08% | 60.9% | 36.6% | |||||||||||
Oregon | 7.84% | 63.3% | 28.9% | |||||||||||
British Columbia | 1.59% | 35.7% | 19.7% | 2.10% | ||||||||||
New Jersey | 28.5% | 71.2% | ||||||||||||
South Carolina | 1.10% | 75.7% | 23.2% | |||||||||||
Connecticut | 99.9% | |||||||||||||
Colorado | 13.8% | 53.9% | 10.3% | 3.14% | ||||||||||
Massachusetts | 91.5% | 6.67% | ||||||||||||
South Dakota | 61.9% | 38.1% | ||||||||||||
Ohio | 77.5% | 20.4% | ||||||||||||
California | 46.0% | 7.90% | 27.9% | 1 | ||||||||||
Arizona | 8.64% | 10.8% | 6.36% | 10.3% | 8.92% | 4.76% | 6.12% | |||||||
Utah | 6.90% | 15.9% | 5.97% | 1 | 16.5% | |||||||||
Yukon | 7.00% | 59.8% | 26.1% | 7.10% | 2.27% | |||||||||
Northwest Territories | 5.77% | 26.0% | 42.2% | 3.09% | 1 | 1.44% | ||||||||
Florida | 9.02% | 56.6% | 20.8% | 3.46% | 42.1% | |||||||||
Idaho | 5.95% | 12.1% | 9.81% | 31.7% | 0.527% | |||||||||
Wyoming | 5.38% | 5.86% | 13.2% | 4.22% | ||||||||||
Nunavut | 1.70% | 21.4% | 1.54% | 3.79% | ||||||||||
Maine | 79.8% | 14.7% | 5.13% | 1.04% | ||||||||||
North Dakota | 95.7% | 4.33% | 18.3% | |||||||||||
Kentucky | 41.2% | 58.8% | 7.06% | |||||||||||
Nova Scotia | 19.0% | 8.02% | 45.5% | |||||||||||
Virginia | 5.25% | 53.9% | 38.5% | 2.22% | 17.5% | |||||||||
Mississippi | 13.6% | 19.8% | 65.6% | 5.48% | ||||||||||
West Virginia | 97.0% | 3.04% | 27.1% | |||||||||||
Nebraska | 38.0% | 62.0% | 5.07% | |||||||||||
Texas | 1.43% | 21.8% | 34.0% | 42.5% | 0.625% | |||||||||
Missouri | 100% | 1 | 0.407% | |||||||||||
North Carolina | 16.4% | 81.1% | 2.09% | 13.2% | ||||||||||
New Brunswick | 31.5% | 64.2% | 2.38% | 7.07% | ||||||||||
Alabama | 14.4% | 11.5% | 12.9% | 58.4% | 6.35% | |||||||||
New Mexico | 3.65% | 6.22% | 12.8% | 2.01% | 14.3% | 29.5% | ||||||||
Kansas | 100% | 2.31% | ||||||||||||
Wisconsin | 19.7% | 79.8% | 2 | 31.1% | ||||||||||
Newfoundland and Labrador | 2.13% | 3.18% | 1.22% | 1 | 9.36% | |||||||||
Michigan | 4.25% | 65.7% | 11.8% | 13 | 8.03% | |||||||||
Alberta | 2.96% | 41.2% | 52.3% | 4.20% | ||||||||||
Pennsylvania | 14.0% | 81.5% | 4.50% | 14.8% | ||||||||||
Nevada | 13.2% | 33.3% | 53.5% | 4.77% | ||||||||||
Georgia | 2.02% | 11.8% | 34.0% | 52.1% | 38.3% | |||||||||
New York | 42.9% | 2.90% | 1 | 1.63% | ||||||||||
Maryland | 11.3% | 16.7% | 71.1% | 0.239% | ||||||||||
Québec | 9.73% | 2.25% | 18.5% | 22.7% | 14.4% | 1 | 2.89% | |||||||
Manitoba | 3.86% | 21.7% | 27.1% | 47.3% | 13.2% | |||||||||
Oklahoma | 94.0% | 6.04% | 4.68% | |||||||||||
Tennessee | 95.3% | 4.67% | 4.04% | |||||||||||
Ontario | 2.04% | 56.2% | 35.4% | 2.08% | 5.81% | |||||||||
Arkansas | 100% | 17.2% | ||||||||||||
Indiana | 1.92% | 97.6% | 33.8% | |||||||||||
Minnesota | 22.5% | 75.0% | 2.49% | 14 | 16.9% | |||||||||
Iowa | 30.7% | 69.3% | 0.441% | |||||||||||
Illinois | 38.2% | 58.7% | 3.07% | 16.2% | ||||||||||
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