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Thunderstorm Occurrence

North AmericaPhysical Environment

Thunderstorm occurrence in North America

NOAA

Thunderstorms 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).

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Thunderstorm Occurrence

Ecological Regions: Level 2 Labels

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

ALASKA BOREAL INTERIOR

ALASKA TUNDRA

ARCTIC CORDILLERA

ATLANTIC HIGHLANDS

BOREAL CORDILLERA

BOREAL PLAIN

BROOKS RANGE TUNDRA

CENTRAL USA PLAINS

COLD DESERTS

EVERGLADES

HUDSON PLAIN

MARINE WEST COAST FOREST

MEDITERRANEAN CALIFORNIA

MISSISSIPPI ALLUVIAL AND SOUTHEAST USA COASTAL PLAINS

MIXED WOOD PLAINS

MIXED WOOD SHIELD

NORTHERN ARCTIC

OZARK/OUACHITA-APPALACHIAN FORESTS

SOFTWOOD SHIELD

SOUTH CENTRAL SEMIARID PRAIRIES

SOUTHEASTERN USA PLAINS

SOUTHERN ARCTIC

TAIGA CORDILLERA

TAIGA PLAIN

TAIGA SHIELD

TEMPERATE PRAIRIES

TEXAS-LOUISIANA COASTAL PLAIN

UPPER GILA MOUNTAINS

WARM DESERTS

WEST-CENTRAL SEMIARID PRAIRIES

WESTERN CORDILLERA

WESTERN SIERRA MADRE PIEDMONT

District of Columbia
100%
Idaho
5.95%12.1%9.81%31.7%
New Hampshire
94.4%5.56%
Vermont
100%
Kentucky
41.2%58.8%
Virginia
5.25%53.9%38.5%2.22%
Missouri
100%
Louisiana
2.08%60.9%36.6%
Kansas
100%
South Carolina
1.10%75.7%23.2%
Connecticut
99.9%
Georgia
2.02%11.8%34.0%52.1%
Maryland
11.3%16.7%71.1%
Manitoba
3.86%21.7%27.1%47.3%
Oklahoma
94.0%6.04%
Tennessee
95.3%4.67%
Ohio
77.5%20.4%
Alaska
7.66%55.2%19.9%281516
Arizona
8.64%10.8%6.36%10.3%8.92%4.76%211
Utah
6.90%15.9%5.97%11
Yukon
7.00%59.8%26.1%7.10%1
Northwest Territories
5.77%26.0%42.2%3.09%3111
Florida
9.02%56.6%20.8%3.46%11
Rhode Island
3.91%1
Washington
1.35%57.1%1.44%12
Wyoming
5.38%5.86%13.2%11
Nunavut
1.70%21.4%1.54%8204
Montana
1.73%42.7%23.7%7.99%13
Maine
79.8%14.7%5.13%1
North Dakota
95.7%4.33%1
Nova Scotia
19.0%8.02%2
Delaware
99.2%1
Prince Edward Island
98.5%1
Saskatchewan
18.8%50.7%20.5%1
Mississippi
13.6%19.8%65.6%1
West Virginia
97.0%3.04%1
Nebraska
38.0%62.0%1
Texas
1.43%21.8%34.0%42.5%211
North Carolina
16.4%81.1%2.09%11
Oregon
7.84%63.3%28.9%1
New Brunswick
31.5%64.2%2.38%1
Alabama
14.4%11.5%12.9%58.4%1
New Mexico
3.65%6.22%12.8%2.01%14.3%4
Wisconsin
19.7%79.8%1
British Columbia
1.59%35.7%19.7%2.10%1111
Newfoundland and Labrador
2.13%3.18%1.22%1
New Jersey
28.5%71.2%1
Michigan
4.25%65.7%11.8%111
Alberta
2.96%41.2%52.3%11
Pennsylvania
14.0%81.5%4.50%1
Colorado
13.8%53.9%10.3%3.14%1
Nevada
13.2%33.3%53.5%1
Massachusetts
91.5%6.67%1
New York
42.9%2.90%21
Québec
9.73%2.25%18.5%22.7%14.4%111211
Ontario
2.04%56.2%35.4%2.08%111
California
46.0%7.90%27.9%211
Arkansas
100%11
South Dakota
61.9%38.1%1
Indiana
1.92%97.6%1
Minnesota
22.5%75.0%2.49%1
Iowa
30.7%69.3%1
Illinois
38.2%58.7%3.07%1
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