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Thunderstorm Occurrence

North AmericaPhysical Environment

Thunderstorm occurrence in North America

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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Display by:	Thunderstorm Occurrence												HIV (U.S.)
	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	Class	Rank	Infections per 100,000 people
Yukon									7.00%	59.8%	26.1%	7.10%
Northwest Territories									5.77%	26.0%	42.2%	3.09%
Nunavut										1.70%	21.4%	1.54%
Nova Scotia									19.0%	8.02%
Prince Edward Island									98.5%
Saskatchewan								18.8%	50.7%	20.5%
New Brunswick								31.5%	64.2%	2.38%
British Columbia								1.59%	35.7%	19.7%	2.10%
Newfoundland and Labrador										2.13%	3.18%	1.22%
Alberta							2.96%	41.2%	52.3%
Québec								9.73%	2.25%	18.5%	22.7%	14.4%
Manitoba							3.86%	21.7%	27.1%	47.3%
Ontario							2.04%	56.2%	35.4%	2.08%
Alabama		14.4%	11.5%	12.9%	58.4%									17	342
Alaska										7.66%	55.2%	19.9%		44	122
Arizona					8.64%	10.8%	6.36%	10.3%	8.92%	4.76%				23	283
Arkansas					100%									27	239
California									46.0%	7.90%	27.9%			10	406
Colorado				13.8%	53.9%	10.3%	3.14%							24	269
Connecticut								99.9%						16	345
Delaware								99.2%						9	409
District of Columbia								100%						1	2.26e+3
Florida	9.02%	56.6%	20.8%	3.46%										5	613
Georgia		2.02%	11.8%	34.0%	52.1%									4	644
Hawaii														33	200
Idaho						5.95%	12.1%	9.81%	31.7%					48	83.8
Illinois					38.2%	58.7%	3.07%							18	337
Indiana					1.92%	97.6%								30	211
Iowa					30.7%	69.3%								46	111
Kansas					100%									39	139
Kentucky					41.2%	58.8%								31	210
Louisiana			2.08%	60.9%	36.6%									6	553
Maine								79.8%	14.7%	5.13%				38	141
Maryland						11.3%	16.7%	71.1%						3	655
Massachusetts								91.5%	6.67%					15	354
Michigan						4.25%	65.7%	11.8%						35	199
Minnesota						22.5%	75.0%	2.49%						36	190
Mississippi			13.6%	19.8%	65.6%									13	392
Missouri					100%									25	249
Montana						1.73%	42.7%	23.7%	7.99%					50	75.0
Nebraska					38.0%	62.0%								37	146
Nevada							13.2%	33.3%	53.5%					8	419
New Hampshire								94.4%	5.56%					45	112
New Jersey							28.5%	71.2%						7	468
New Mexico			3.65%	6.22%	12.8%	2.01%	14.3%							28	222
New York							42.9%	2.90%						2	762
North Carolina					16.4%	81.1%	2.09%							14	374
North Dakota							95.7%	4.33%						49	83.4
Ohio						77.5%	20.4%							26	240
Oklahoma					94.0%	6.04%								34	200
Oregon								7.84%	63.3%	28.9%				32	202
Pennsylvania						14.0%	81.5%	4.50%						19	335
Rhode Island								3.91%						22	292
South Carolina				1.10%	75.7%	23.2%								12	405
South Dakota						61.9%	38.1%							47	94.4
Tennessee					95.3%	4.67%								21	314
Texas				1.43%	21.8%	34.0%	42.5%							11	405
Utah						6.90%	15.9%	5.97%						43	126
Vermont								100%						42	133
Virginia					5.25%	53.9%	38.5%	2.22%						20	331
Washington								1.35%	57.1%	1.44%				29	220
West Virginia						97.0%	3.04%							40	136
Wisconsin						19.7%	79.8%							41	134
Wyoming					5.38%	5.86%	13.2%							51	73.0

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