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 | 2000–3,999 m | 500–1,999 m | 200–499 m | 1–199 m | Below sea level to 0 m | Warm Front | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 7.66% | 55.2% | 19.9% | 0.312% | 0.159% | 3.83% | 0.187% | |||||||||||
Arizona | 8.64% | 10.8% | 6.36% | 10.3% | 8.92% | 4.76% | 4.23% | 75.1% | 13.5% | 0.123% | ||||||||
Utah | 6.90% | 15.9% | 5.97% | 28.9% | 4.66% | |||||||||||||
Yukon | 7.00% | 59.8% | 26.1% | 7.10% | 2.03% | 1.62% | 0.171% | 2.08% | ||||||||||
Northwest Territories | 5.77% | 26.0% | 42.2% | 3.09% | 0.701% | 1.01% | 0.274% | |||||||||||
District of Columbia | 100% | 100% | ||||||||||||||||
Florida | 9.02% | 56.6% | 20.8% | 3.46% | 97.2% | 0.723% | ||||||||||||
Idaho | 5.95% | 12.1% | 9.81% | 31.7% | 20.0% | 1.27% | ||||||||||||
New Hampshire | 94.4% | 5.56% | 24.8% | 51.0% | 24.2% | |||||||||||||
Rhode Island | 3.91% | 91.9% | ||||||||||||||||
Vermont | 100% | 5.41% | 75.7% | 16.8% | ||||||||||||||
Washington | 1.35% | 57.1% | 1.44% | 3.74% | 0.127% | 0.321% | ||||||||||||
Wyoming | 5.38% | 5.86% | 13.2% | 48.7% | 0.191% | |||||||||||||
Nunavut | 1.70% | 21.4% | 1.54% | 0.590% | 0.103% | 0.752% | ||||||||||||
Montana | 1.73% | 42.7% | 23.7% | 7.99% | 7.68% | 92.3% | ||||||||||||
Maine | 79.8% | 14.7% | 5.13% | 3.08% | 49.6% | 46.1% | ||||||||||||
North Dakota | 95.7% | 4.33% | 1.28% | 41.6% | ||||||||||||||
Kentucky | 41.2% | 58.8% | 2.03% | 67.9% | 1.14% | |||||||||||||
Nova Scotia | 19.0% | 8.02% | 5.47% | 9.63% | ||||||||||||||
Virginia | 5.25% | 53.9% | 38.5% | 2.22% | 25.3% | 22.3% | 50.6% | |||||||||||
Delaware | 99.2% | 97.1% | ||||||||||||||||
Prince Edward Island | 98.5% | 54.6% | ||||||||||||||||
Saskatchewan | 18.8% | 50.7% | 20.5% | 0.419% | 47.4% | |||||||||||||
Mississippi | 13.6% | 19.8% | 65.6% | 99.9% | ||||||||||||||
West Virginia | 97.0% | 3.04% | 41.2% | 57.1% | 1.62% | |||||||||||||
Nebraska | 38.0% | 62.0% | 80.9% | 19.1% | ||||||||||||||
Texas | 1.43% | 21.8% | 34.0% | 42.5% | 45.6% | 17.8% | 36.4% | |||||||||||
Missouri | 100% | 86.5% | 13.5% | |||||||||||||||
Louisiana | 2.08% | 60.9% | 36.6% | 93.8% | 0.383% | |||||||||||||
Hawaii | 0.312% | 0.691% | 0.644% | |||||||||||||||
North Carolina | 16.4% | 81.1% | 2.09% | 15.5% | 22.7% | 59.6% | ||||||||||||
Oregon | 7.84% | 63.3% | 28.9% | 81.4% | 2.26% | 0.478% | ||||||||||||
New Brunswick | 31.5% | 64.2% | 2.38% | 37.0% | 58.8% | |||||||||||||
Alabama | 14.4% | 11.5% | 12.9% | 58.4% | 24.8% | 75.1% | ||||||||||||
New Mexico | 3.65% | 6.22% | 12.8% | 2.01% | 14.3% | 28.8% | 69.9% | |||||||||||
Kansas | 100% | 51.4% | 48.6% | |||||||||||||||
Wisconsin | 19.7% | 79.8% | 2.16% | 95.2% | 1.75% | |||||||||||||
British Columbia | 1.59% | 35.7% | 19.7% | 2.10% | 0.679% | 0.195% | 3.52% | 0.563% | ||||||||||
Newfoundland and Labrador | 2.13% | 3.18% | 1.22% | 1.34% | 39.7% | 2.34% | ||||||||||||
New Jersey | 28.5% | 71.2% | 16.4% | 80.4% | ||||||||||||||
South Carolina | 1.10% | 75.7% | 23.2% | 1.04% | 11.8% | 86.6% | 0.391% | |||||||||||
Michigan | 4.25% | 65.7% | 11.8% | 0.349% | 83.9% | 12.8% | 0.190% | |||||||||||
Alberta | 2.96% | 41.2% | 52.3% | 0.430% | 0.453% | 22.3% | ||||||||||||
Connecticut | 99.9% | 20.0% | 79.4% | |||||||||||||||
Pennsylvania | 14.0% | 81.5% | 4.50% | 20.4% | 65.0% | 0.204% | ||||||||||||
Colorado | 13.8% | 53.9% | 10.3% | 3.14% | 49.6% | 1.04% | ||||||||||||
Nevada | 13.2% | 33.3% | 53.5% | 0.567% | 92.4% | |||||||||||||
Massachusetts | 91.5% | 6.67% | 3.87% | 32.8% | 55.0% | |||||||||||||
Georgia | 2.02% | 11.8% | 34.0% | 52.1% | 3.30% | 26.4% | 69.4% | 0.831% | ||||||||||
New York | 42.9% | 2.90% | 4.04% | 49.6% | 0.993% | |||||||||||||
Maryland | 11.3% | 16.7% | 71.1% | 7.33% | 7.75% | 80.9% | 2.82% | |||||||||||
Québec | 9.73% | 2.25% | 18.5% | 22.7% | 14.4% | 0.242% | 54.2% | 0.385% | ||||||||||
Manitoba | 3.86% | 21.7% | 27.1% | 47.3% | 0.246% | 72.5% | 23.3% | |||||||||||
Oklahoma | 94.0% | 6.04% | 21.8% | 70.1% | 8.07% | |||||||||||||
Tennessee | 95.3% | 4.67% | 5.10% | 57.9% | 31.6% | |||||||||||||
California | 46.0% | 7.90% | 27.9% | 6.79% | 1.42% | 0.420% | 0.348% | 1.23% | ||||||||||
Arkansas | 100% | 1.84% | 28.8% | 69.4% | ||||||||||||||
South Dakota | 61.9% | 38.1% | 8.14% | 25.3% | ||||||||||||||
Ohio | 77.5% | 20.4% | 96.2% | 3.80% | ||||||||||||||
Indiana | 1.92% | 97.6% | 71.4% | 0.711% | ||||||||||||||
Minnesota | 22.5% | 75.0% | 2.49% | 1.27% | 95.8% | |||||||||||||
Iowa | 30.7% | 69.3% | 99.7% | 0.283% | ||||||||||||||
Illinois | 38.2% | 58.7% | 3.07% | 42.1% | 1.04% | |||||||||||||
Ontario | 2.04% | 56.2% | 35.4% | 2.08% | 64.3% | 31.1% | 2.17% |
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