Heat

Events

35,403

Deaths

4,051

Injuries

11,101

Damage

$521 million

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

• Heat in Illinois, July 28 to 31, 199999 deaths · 7 eventsAn intense heat wave began in the Chicago metropolitan area July 28th and continued through the morning of July 31st. High temperatures on the 28th were in the lower to middle 90s with heat indices 100 to 105.
• Heat in Pennsylvania, July 4 to 6, 199974 deaths · 135 injured · 10 eventsA very strong and oppressive high pressure system that extended from the surface to aloft gave Eastern Pennsylvania a brutal heat wave that included the entire Independence Day weekend. There were 74 heat related deaths and over 100 reported heat related injuries.
• Heat in Texas, June 27, 202253 deaths · 1 eventTemperatures were unusually hot on the 27th with high temperatures in the San Antonio area ranging from 100-103 degrees (the normal high is 93). Sixty-seven people were found in a tractor-trailer on the southwest side of San Antonio.
• Excessive Heat and Heat in Arizona, July 14 to 18, 202251 deaths · 20 eventsA strong upper level ridge situated over the Desert Southwest led to well above normal temperatures along with excessive heat conditions at times. Temperatures during this time at Phoenix Sky Harbor peaked on the 16th at 114 degrees.
• Heat in Texas, September 21 to 28, 200549 deaths · 4 eventsDeaths were all associated with the evacuation for Hurricane Rita, both before and after Rita's arrival. Rita made landfall just east of the Texas/Louisiana border early Saturday morning, September 24th.
• Excessive Heat and Heat in Arizona, July 19 to 23, 202249 deaths · 35 eventsAn anomalously strong ridge of high pressure over the Desert Southwest persisted into the latter part of July, leading to temperatures in excess of 110 degrees in Phoenix most days during this time.
• Heat in California, July 16 to 27, 200646 deaths · 18 injured · $493 million · 8 eventsArguably one of the hottest spells widespread across California, including Interior Central California, in the last 75 years occurred during a warm period that spanned from the 16th through the 27th of the month.
• Heat in Missouri, July 18 to 31, 199942 deaths · 397 injured · 30 eventsA heat wave gripped the area for the last 2 weeks of July. Temperatures stayed in the middle to upper 90s with a few days topping 100. Columbia set a record high with 104 degrees on 7/29/99. St. Louis tied a record with 103 degrees on 7/30/99.
• Heat in New York, August 1 to 3, 200642 deaths · 15 eventsAn oppressive air mass moved slowly east across the region from August 1 to August 3.
• Heat in New York, July 4 to 6, 199933 deaths · 15 eventsAn extremely hot and humid airmass covered the region from July 4th through July 6th.On Sunday July 4th, temperatures soared into the mid and upper 90s. The combination of high temperatures and moderate humidity caused most heat indices to range from 100 to 105 degrees.
• Excessive Heat and Heat in Arizona, July 8 to 13, 202233 deaths · 37 eventsA strong ridge of high pressure became situated over the Four Corners region, leading to dangerous temperatures as well as excessive heat conditions at times across the Phoenix area.
• Heat in Texas, July 1 to 31, 199832 deaths · 46 eventsA prolonged excessive heat event continued across north Texas in July. This heat wave was the result of existing drought conditions combined with a persistent upper level ridge of high pressure.
• Heat in Arizona, July 12 to 21, 200530 deaths · 1 eventThis was the third warmest July on record in Phoenix. The average monthly temperature was 97.3 degrees, just 4 tenths of a degree shy of the record warmest July which was set in 2003. The average maximum temperature for the month was 109.5 compared to a normal of 106.6 degrees.
• Heat in Arizona, July 18 to 23, 202130 deaths · 14 eventsThe strong monsoon high centered over the Four Corners led to temperatures approaching 110 degrees at times in Phoenix. Temperatures most nights were 3-4 degrees above normal as lows remained in the upper 80s.
• Excessive Heat and Heat in Arizona, August 1 to 7, 202326 deaths · 38 eventsA strong ridge of high pressure over the Southern Plains expanded westward into the Desert Southwest, leading to excessive heat conditions across the region.
• Heat in Pennsylvania, July 12 to 18, 199724 deaths · 60 injured · 10 eventsThe longest and hottest heat wave of the summer of 1997 brought around 6 consecutive days of high temperatures of 90 degrees or higher to Eastern Pennsylvania. Along with the oppressive heat came high humidity levels and limited rainfall.
• Heat in Illinois, August 1 to 2, 200624 deaths · 1 eventThe second heat wave of the summer developed during late July 2006 and continued into early August. See Stormdata, July 2006, Illinois, Northeast. The high temperature at Northerly Island in downtown Chicago reached 99 on August 1st and 96 on August 2nd.
• Heat in Pennsylvania, August 1 to 3, 200624 deaths · 40 injured · 8 eventsA strong area of high pressure anchored over the East Coast and the western Atlantic, resulted in a stretch of excessive heat for the entire region to start off August 2006.
• Heat in Arizona, July 15 to 17, 202024 deaths · 3 eventsThe Desert Southwest remained under the influence of persistent strong high pressure during the middle part of July. During this time, temperatures peaked around 110 degrees each day.
• Heat in Arizona, August 9 to 14, 202324 deaths · 11 eventsAn upper level ridge shifted into the Interior Mountain West from the eastern Pacific during the period between the 9-14th, keeping temperatures above normal during this time.
• Heat in Missouri, July 18 to 31, 199922 deaths · 38 eventsNorthwest Missouri suffered through two weeks of oppressive heat and humidity in late July as temperatures topped the 90 degree mark for 14 consecutive days. Dew points in the lower to middle 70s pushed afternoon heat indices above 100 degrees each day.
• Heat in Pennsylvania, August 6 to 10, 200122 deaths · 10 eventsA ridge of high pressure both surface and aloft that was broiling the central part of the country moved east and covered Eastern Pennsylvania during the work week of August 6th. This brought a very oppressive hot spell to the region and peaked on the 9th.
• Heat in Maryland, July 2 to 4, 200221 deaths · 14 eventsHigh pressure remained stationary off the Delmarva coastline during the 1st week of July. This resulted in a prolonged period of hot and humid weather across the Mid Atlantic region.
• Excessive Heat and Heat in Arizona, June 26 to 30, 202421 deaths · 14 eventsThe Desert Southwest was under the influence of a strong ridge of high pressure, leading to afternoon temperatures topping out each day at or above 110 degrees in Phoenix.
• Heat in Texas, July 6 to 23, 200019 deaths · 23 eventsExcessive heat impacted southeast Texas for much of the month of July. High temperatures ranged from 98 to 105 degrees on a daily basis over all but the immediate coast during a 2 week period.

• Heat in California, July 16 to 27, 200646 deaths · 18 injured · $493 million · 8 events
• Heat in Vermont, March 17 to 22, 2012$9.7 million · 16 events
• Heat in Nebraska, June 22 to 24, 2009$4.0 million · 5 events
• Excessive Heat and Heat in Kansas, July 16 to 24, 2010$3.5 million · 59 events
• Heat in Nebraska, July 19 to 30, 19992 deaths · $3.3 million · 30 events
• Heat in Nebraska, July 22 to 24, 2005$3.0 million · 30 events
• Heat in New York, March 17 to 22, 2012$2.1 million · 9 events
• Heat in Nebraska, July 9, 2013$2.0 million · 2 events
• Heat and Drought in Texas, June 1 to 20, 2008$550,000 · 24 events
• Heat in Alabama, August 1 to 28, 2010$375,000 · 4 events
• Heat in Mississippi, July 15 to 19, 2006$77,000 · 47 events
• Heat in Missouri, June 22 to 23, 2009$30,000 · 11 events
• Heat in California, May 17, 200911 injured · $30,000 · 10 events
• Excessive Heat and Heat in Illinois, July 16 to 20, 20136 deaths · $25,000 · 3 events
• Heat in Louisiana, July 4, 1997$20,000 · 1 event
• Heat in Ohio, June 19, 2018$20,000 · 1 event
• Heat in Maryland, March 27 to 31, 1998$10,000 · 13 events
• Heat in Oklahoma, August 1 to 13, 20068 deaths · $10,000 · 48 events
• Heat in California, July 1 to 30, 2003$2,000 · 4 events
• Heat in Iowa, July 25 to 27, 199712 injured · $500 · 22 events
• Heat in California, July 16, 2023$10 · 1 event

• Thunderstorm Wind
• Hail
• Flash Flood
• High Wind
• Winter Storm
• Drought
• Winter Weather
• Tornado
• Heavy Snow
• Flood
• Marine Thunderstorm Wind
• Heat
• Heavy Rain
• Strong Wind
• Excessive Heat
• Extreme Cold/Wind Chill
• Cold/Wind Chill
• Lightning
• Dense Fog
• Blizzard
• Frost/Freeze
• Ice Storm
• High Surf
• Funnel Cloud
• Wildfire
• Tropical Storm
• Waterspout
• Coastal Flood
• Lake-Effect Snow
• Debris Flow
• Hurricane (Typhoon)
• Dust Storm
• Rip Current
• Storm Surge/Tide
• Marine High Wind
• Sleet
• Avalanche
• Marine Hail
• Astronomical Low Tide
• Marine Tropical Storm
• Tropical Depression
• Freezing Fog
• Lakeshore Flood
• Dust Devil
• Marine Strong Wind
• Dense Smoke
• Marine Hurricane/Typhoon
• Volcanic Ashfall
• Seiche
• Sneakerwave
• Volcanic Ash
• Tsunami
• Marine Tropical Depression
• Marine Dense Fog
• Northern Lights
• Marine Lightning
• Hurricane

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.