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 | Manganese Mines | Lightning Frequency | <0.1 flashes/km²/year | 0.1 flashes/km²/year | 0.2 flashes/km²/year | 0.4 flashes/km²/year | 0.6 flashes/km²/year | 0.8 flashes/km²/year | 1 flash/km²/year | 2 flashes/km²/year | 4 flashes/km²/year | 6 flashes/km²/year | 8 flashes/km²/year | 10 flashes/km²/year | 20 flashes/km²/year | 30 flashes/km²/year | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 7.66% | 55.2% | 19.9% | 6.63% | 1.78% | 25.5% | 0.226% | 5.17% | ||||||||||||||||||||
Arizona | 8.64% | 10.8% | 6.36% | 10.3% | 8.92% | 4.76% | 48 | 1.13% | 23.6% | 20.0% | 37.0% | 18.2% | ||||||||||||||||
Utah | 6.90% | 15.9% | 5.97% | 15 | 22.2% | 65.3% | 0.130% | |||||||||||||||||||||
Yukon | 7.00% | 59.8% | 26.1% | 7.10% | 2.57% | 1.17% | 39.3% | 42.1% | 0.676% | 0.532% | 2.01% | |||||||||||||||||
Northwest Territories | 5.77% | 26.0% | 42.2% | 3.09% | 10.4% | 11.3% | 1.93% | 1.61% | 13.9% | 14.4% | 4.36% | 8.69% | ||||||||||||||||
District of Columbia | 100% | 100% | ||||||||||||||||||||||||||
Florida | 9.02% | 56.6% | 20.8% | 3.46% | 0.168% | 52.7% | 47.1% | |||||||||||||||||||||
Idaho | 5.95% | 12.1% | 9.81% | 31.7% | 8.51% | 90.0% | ||||||||||||||||||||||
New Hampshire | 94.4% | 5.56% | 77.0% | 23.0% | ||||||||||||||||||||||||
Rhode Island | 3.91% | 100% | ||||||||||||||||||||||||||
Vermont | 100% | 4.97% | 95.0% | |||||||||||||||||||||||||
Washington | 1.35% | 57.1% | 1.44% | 1.04% | 10.6% | 19.8% | 20.2% | 12.1% | 35.6% | 0.648% | ||||||||||||||||||
Wyoming | 5.38% | 5.86% | 13.2% | 1 | 48.7% | 16.7% | 16.6% | 10.4% | 7.61% | |||||||||||||||||||
Nunavut | 1.70% | 21.4% | 1.54% | 41.3% | 36.7% | 7.71% | 1.80% | 1.53% | 0.139% | |||||||||||||||||||
Montana | 1.73% | 42.7% | 23.7% | 7.99% | 24 | 1.84% | 16.7% | 6.56% | 12.0% | 2.35% | ||||||||||||||||||
Maine | 79.8% | 14.7% | 5.13% | 5.45% | 71.9% | |||||||||||||||||||||||
North Dakota | 95.7% | 4.33% | 5.40% | 24.2% | 48.6% | 17.6% | ||||||||||||||||||||||
Kentucky | 41.2% | 58.8% | 100% | |||||||||||||||||||||||||
Nova Scotia | 19.0% | 8.02% | 8.11% | 10.6% | 36.1% | 17.3% | 27.8% | |||||||||||||||||||||
Virginia | 5.25% | 53.9% | 38.5% | 2.22% | 0.585% | 33.4% | 66.0% | |||||||||||||||||||||
Delaware | 99.2% | 1.09% | 21.6% | 74.1% | 3.24% | |||||||||||||||||||||||
Prince Edward Island | 98.5% | 2.52% | 8.96% | 20.3% | 68.2% | |||||||||||||||||||||||
Saskatchewan | 18.8% | 50.7% | 20.5% | 0.267% | 0.717% | 31.5% | 16.7% | 3.54% | ||||||||||||||||||||
Mississippi | 13.6% | 19.8% | 65.6% | 53.6% | 46.4% | |||||||||||||||||||||||
West Virginia | 97.0% | 3.04% | 2 | 90.8% | 9.25% | |||||||||||||||||||||||
Nebraska | 38.0% | 62.0% | 2.93% | 89.3% | 7.74% | |||||||||||||||||||||||
Texas | 1.43% | 21.8% | 34.0% | 42.5% | 1.17% | 8.70% | 65.9% | 24.2% | ||||||||||||||||||||
Missouri | 100% | 97.2% | 2.76% | |||||||||||||||||||||||||
Louisiana | 2.08% | 60.9% | 36.6% | 1 | 100% | |||||||||||||||||||||||
Hawaii | 0.113% | 0.444% | 32.9% | 60.0% | ||||||||||||||||||||||||
North Carolina | 16.4% | 81.1% | 2.09% | 100% | ||||||||||||||||||||||||
Oregon | 7.84% | 63.3% | 28.9% | 7 | 0.565% | 3.81% | 5.52% | 5.86% | 3.52% | 49.6% | 23.8% | |||||||||||||||||
New Brunswick | 31.5% | 64.2% | 2.38% | 0.276% | 0.234% | 58.0% | ||||||||||||||||||||||
Alabama | 14.4% | 11.5% | 12.9% | 58.4% | 41.8% | 58.2% | ||||||||||||||||||||||
New Mexico | 3.65% | 6.22% | 12.8% | 2.01% | 14.3% | 3 | 7.94% | 33.3% | 53.7% | |||||||||||||||||||
Kansas | 100% | 96.1% | 3.88% | |||||||||||||||||||||||||
Wisconsin | 19.7% | 79.8% | 0.368% | 53.9% | 28.7% | 12.9% | 3.74% | |||||||||||||||||||||
British Columbia | 1.59% | 35.7% | 19.7% | 2.10% | 1.64% | 6.95% | 12.6% | 20.1% | 4.57% | 5.28% | 0.164% | 6.19% | ||||||||||||||||
Newfoundland and Labrador | 2.13% | 3.18% | 1.22% | 5.05% | 7.84% | 8.94% | 30.5% | 12.3% | 3.57% | 0.308% | ||||||||||||||||||
New Jersey | 28.5% | 71.2% | 9.73% | 90.3% | ||||||||||||||||||||||||
South Carolina | 1.10% | 75.7% | 23.2% | 1 | 85.1% | 14.9% | ||||||||||||||||||||||
Michigan | 4.25% | 65.7% | 11.8% | 1.83% | 31.7% | 16.4% | 14.6% | 8.66% | ||||||||||||||||||||
Alberta | 2.96% | 41.2% | 52.3% | 22.8% | 73.1% | 3.13% | ||||||||||||||||||||||
Connecticut | 99.9% | 77.5% | 20.8% | 1.09% | ||||||||||||||||||||||||
Pennsylvania | 14.0% | 81.5% | 4.50% | 7.74% | 34.9% | 57.3% | ||||||||||||||||||||||
Colorado | 13.8% | 53.9% | 10.3% | 3.14% | 15 | 3.18% | 32.7% | 15.2% | 10.5% | 30.1% | 8.34% | |||||||||||||||||
Nevada | 13.2% | 33.3% | 53.5% | 2 | 1.83% | 39.4% | 47.0% | 11.8% | ||||||||||||||||||||
Massachusetts | 91.5% | 6.67% | 2 | 2.27% | 79.0% | 18.5% | ||||||||||||||||||||||
Georgia | 2.02% | 11.8% | 34.0% | 52.1% | 3 | 48.4% | 51.6% | |||||||||||||||||||||
New York | 42.9% | 2.90% | 2 | 16.1% | 65.1% | 18.0% | 0.137% | |||||||||||||||||||||
Maryland | 11.3% | 16.7% | 71.1% | 2.23% | 17.7% | 58.3% | 21.7% | |||||||||||||||||||||
Québec | 9.73% | 2.25% | 18.5% | 22.7% | 14.4% | 11.0% | 4.90% | 11.5% | 3.83% | 3.39% | 3.67% | 19.7% | 17.8% | 0.183% | ||||||||||||||
Manitoba | 3.86% | 21.7% | 27.1% | 47.3% | 2.65% | 4.40% | 2.91% | 25.0% | 48.7% | 10.4% | ||||||||||||||||||
Oklahoma | 94.0% | 6.04% | 64.4% | 35.6% | ||||||||||||||||||||||||
Tennessee | 95.3% | 4.67% | 1 | 100% | ||||||||||||||||||||||||
Ontario | 2.04% | 56.2% | 35.4% | 2.08% | 1 | 2.58% | 3.28% | 0.872% | 19.2% | 2.31% | 2.14% | 0.326% | 0.285% | |||||||||||||||
California | 46.0% | 7.90% | 27.9% | 202 | 2.29% | 10.6% | 16.3% | 5.69% | 2.96% | 35.4% | 15.6% | 1.52% | ||||||||||||||||
Arkansas | 100% | 3 | 15.7% | 84.3% | ||||||||||||||||||||||||
South Dakota | 61.9% | 38.1% | 2.09% | 52.0% | 45.9% | |||||||||||||||||||||||
Ohio | 77.5% | 20.4% | 23.4% | 76.6% | ||||||||||||||||||||||||
Indiana | 1.92% | 97.6% | 100% | |||||||||||||||||||||||||
Minnesota | 22.5% | 75.0% | 2.49% | 13.4% | 3.05% | 20.4% | 21.8% | 9.11% | ||||||||||||||||||||
Iowa | 30.7% | 69.3% | 5.30% | 6.65% | 14.4% | 73.6% | ||||||||||||||||||||||
Illinois | 38.2% | 58.7% | 3.07% | 1.50% | 98.5% |
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