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 | 160 in and over | 110–159 in | 60–109 in | 30–59 in | 15–29 in | Under 15 in | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alaska | 7.66% | 55.2% | 19.9% | 1.37% | 9.46% | 49.7% | 6.89% | |||||||||||
Arizona | 8.64% | 10.8% | 6.36% | 10.3% | 8.92% | 4.76% | 19.7% | 80.1% | ||||||||||
Utah | 6.90% | 15.9% | 5.97% | 3.97% | 40.0% | 27.9% | 25.0% | |||||||||||
Yukon | 7.00% | 59.8% | 26.1% | 7.10% | 6.60% | 27.0% | 1.28% | 39.2% | ||||||||||
Northwest Territories | 5.77% | 26.0% | 42.2% | 3.09% | 2.52% | 8.57% | 66.7% | 3.09% | ||||||||||
District of Columbia | 100% | 100% | ||||||||||||||||
Florida | 9.02% | 56.6% | 20.8% | 3.46% | 99.4% | |||||||||||||
Idaho | 5.95% | 12.1% | 9.81% | 31.7% | 4.80% | 1.86% | 68.1% | 1.76% | ||||||||||
New Hampshire | 94.4% | 5.56% | 47.6% | 52.4% | ||||||||||||||
Rhode Island | 3.91% | 3.82% | ||||||||||||||||
Vermont | 100% | 87.5% | 12.5% | |||||||||||||||
Washington | 1.35% | 57.1% | 1.44% | 7.48% | 30.0% | 25.7% | 7.10% | 19.9% | ||||||||||
Wyoming | 5.38% | 5.86% | 13.2% | 48.2% | 50.6% | |||||||||||||
Nunavut | 1.70% | 21.4% | 1.54% | 1.25% | 8.66% | 3.24% | 2.55% | |||||||||||
Montana | 1.73% | 42.7% | 23.7% | 7.99% | 1.78% | 37.5% | 50.0% | 8.90% | ||||||||||
Maine | 79.8% | 14.7% | 5.13% | 8.65% | 87.1% | 3.81% | ||||||||||||
North Dakota | 95.7% | 4.33% | 38.9% | 61.1% | ||||||||||||||
Kentucky | 41.2% | 58.8% | 30.8% | 69.2% | ||||||||||||||
Nova Scotia | 19.0% | 8.02% | 19.0% | |||||||||||||||
Virginia | 5.25% | 53.9% | 38.5% | 2.22% | 64.7% | 35.2% | ||||||||||||
Delaware | 99.2% | 5.45% | 93.8% | |||||||||||||||
Prince Edward Island | 98.5% | 98.8% | ||||||||||||||||
Saskatchewan | 18.8% | 50.7% | 20.5% | 95.9% | 1.98% | |||||||||||||
Mississippi | 13.6% | 19.8% | 65.6% | 100% | ||||||||||||||
West Virginia | 97.0% | 3.04% | 57.4% | 42.6% | ||||||||||||||
Nebraska | 38.0% | 62.0% | 39.2% | 60.8% | ||||||||||||||
Texas | 1.43% | 21.8% | 34.0% | 42.5% | 99.8% | |||||||||||||
Missouri | 100% | 76.8% | 23.2% | |||||||||||||||
Louisiana | 2.08% | 60.9% | 36.6% | 99.6% | ||||||||||||||
Hawaii | 10.4% | |||||||||||||||||
North Carolina | 16.4% | 81.1% | 2.09% | 99.0% | ||||||||||||||
Oregon | 7.84% | 63.3% | 28.9% | 9.17% | 6.14% | 26.6% | 1.05% | 18.6% | ||||||||||
New Brunswick | 31.5% | 64.2% | 2.38% | 50.9% | 48.6% | |||||||||||||
Alabama | 14.4% | 11.5% | 12.9% | 58.4% | 100% | |||||||||||||
New Mexico | 3.65% | 6.22% | 12.8% | 2.01% | 14.3% | 8.69% | 12.8% | 21.6% | 56.9% | |||||||||
Kansas | 100% | 76.2% | 23.8% | |||||||||||||||
Wisconsin | 19.7% | 79.8% | 3.31% | 96.1% | ||||||||||||||
British Columbia | 1.59% | 35.7% | 19.7% | 2.10% | 1.49% | 2.94% | 2.84% | 9.04% | 1.50% | |||||||||
Newfoundland and Labrador | 2.13% | 3.18% | 1.22% | 1.25% | 10.4% | 8.92% | ||||||||||||
New Jersey | 28.5% | 71.2% | 45.8% | 53.6% | ||||||||||||||
South Carolina | 1.10% | 75.7% | 23.2% | 99.9% | ||||||||||||||
Michigan | 4.25% | 65.7% | 11.8% | 13.1% | 57.5% | |||||||||||||
Alberta | 2.96% | 41.2% | 52.3% | 4.59% | 15.5% | 78.2% | 1.72% | |||||||||||
Connecticut | 99.9% | 99.9% | ||||||||||||||||
Pennsylvania | 14.0% | 81.5% | 4.50% | 4.01% | 95.7% | |||||||||||||
Colorado | 13.8% | 53.9% | 10.3% | 3.14% | 30.9% | 47.9% | 20.2% | 1.04% | ||||||||||
Nevada | 13.2% | 33.3% | 53.5% | 7.06% | 22.8% | 22.5% | 39.6% | |||||||||||
Massachusetts | 91.5% | 6.67% | 98.2% | |||||||||||||||
Georgia | 2.02% | 11.8% | 34.0% | 52.1% | 99.9% | |||||||||||||
New York | 42.9% | 2.90% | 3.86% | 64.9% | 2.90% | |||||||||||||
Maryland | 11.3% | 16.7% | 71.1% | 16.2% | 83.0% | |||||||||||||
Québec | 9.73% | 2.25% | 18.5% | 22.7% | 14.4% | 12.6% | 33.5% | 46.1% | 3.40% | |||||||||
Manitoba | 3.86% | 21.7% | 27.1% | 47.3% | 52.6% | 46.9% | ||||||||||||
Oklahoma | 94.0% | 6.04% | 99.6% | |||||||||||||||
Tennessee | 95.3% | 4.67% | 8.28% | 91.7% | ||||||||||||||
Ontario | 2.04% | 56.2% | 35.4% | 2.08% | 9.58% | 86.3% | 3.20% | |||||||||||
California | 46.0% | 7.90% | 27.9% | 5.57% | 6.20% | 14.9% | 73.0% | |||||||||||
Arkansas | 100% | 100% | ||||||||||||||||
South Dakota | 61.9% | 38.1% | 60.2% | 39.8% | ||||||||||||||
Ohio | 77.5% | 20.4% | 2.34% | 56.3% | 41.4% | |||||||||||||
Indiana | 1.92% | 97.6% | 25.6% | 72.5% | 1.94% | |||||||||||||
Minnesota | 22.5% | 75.0% | 2.49% | 6.02% | 92.1% | 1.85% | ||||||||||||
Iowa | 30.7% | 69.3% | 47.2% | 52.8% | ||||||||||||||
Illinois | 38.2% | 58.7% | 3.07% | 18.2% | 68.2% | 13.6% |
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