Excessive Heat

Events

21,356

Deaths

2,710

Injuries

8,119

Damage

$19 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.

• Excessive Heat in Arizona, July 11 to 22, 2023240 deaths · 35 eventsA very strong ridge of high pressure strengthened over the Desert Southwest during the middle part of the month, resulting in well above normal temperatures and excessive heat conditions.
• Excessive Heat in Oregon, June 26 to 29, 2021118 deaths · $100,000 · 12 eventsA high pressure heat dome over the region led to stretch of extreme heat, shattering records from June 26 through June 29. All time max temperatures were broken by 8 to 10 degrees.
• Excessive Heat and Heat in Arizona, July 23 to 29, 2023114 deaths · 32 eventsA persistent strong ridge of high pressure over the region led to well above normal temperatures for the end of July. Afternoon highs during this time exceeded 110 degrees each day in Phoenix with the 25th recording a high of 119 degrees.
• Excessive Heat and Heat in Arizona, July 14 to 30, 202365 deaths · 10 eventsPersistent strong high pressure aloft created an extended period of very hot temperatures July 14-30 across southeast Arizona. High temperatures were 5 to 14 degrees above normal causing the Major Heat Risk category to be reached and numerous high temperatures to be established.
• Excessive Heat in Arizona, June 12 to 20, 202160 deaths · 34 eventsA strong upper level ridge strengthened over the Desert Southwest during the middle part of June with the center of high pressure becoming focused over the Four Corners region. As a result, temperatures warmed up well above normal reaching excessive heat conditions.
• Excessive Heat and Heat in Arizona, July 9 to 14, 202044 deaths · 36 eventsA very strong area of high pressure strengthened over the southwest United States, leading to excessive heat conditions across the region. Temperatures in Phoenix exceeded 110 degrees each day with afternoon highs reaching or exceeding 115 degrees on the 11th and the 12th.
• Excessive Heat in Arizona, August 12 to 20, 202043 deaths · 32 eventsA very strong and expansive area of high pressure remained situated over the Desert Southwest for multiple days, allowing for temperatures to reach or exceed 115 degrees most days during this time.
• Excessive Heat in Nevada, July 3 to 12, 202442 deaths · 7 eventsAn exceptionally prolonged and intense heat wave broke many daily and even all-time temperature records. Forty-two people died in Las Vegas of heat-related causes during and immediately after the heat wave.
• Excessive Heat in Arizona, July 22 to 31, 201840 deaths · 6 eventsStrong high pressure over the Desert Southwest allowed for temperatures to climb into record territory across the Phoenix area, resulting in deadly excessive heat conditions. Phoenix Sky Harbor airport recorded temperatures getting as high as 116 degrees during this period.
• Excessive Heat in Nevada, July 1 to 5, 201338 deaths · 213 injured · 2 eventsA large area of high pressure brought record-breaking temperatures to much of the Desert Southwest. Several people died from the heat, many more were injured, and some infrastructure was damaged.
• Excessive Heat and Heat in Arizona, July 6 to 11, 202137 deaths · 23 eventsStrong high pressure encompassing the Desert Southwest led to above normal temperatures, with excessive heat conditions occurring across the Phoenix area between the 9th and 11th.
• Excessive Heat in Arizona, August 25 to 30, 202335 deaths · 28 eventsA strong upper level ridge of high pressure over the Great Plains retrograded westward to the western United States, leading to excessive heat conditions across the region.
• Excessive Heat in Nevada, July 19 to 25, 202434 deaths · 5 eventsHigh pressure built westward over the Mojave Desert, leading to another spell of extreme heat. Thirty-four people died in Las Vegas of heat-related causes.
• Excessive Heat and Heat in Arizona, August 1 to 6, 202032 deaths · 34 eventsA very strong area of high pressure parked over the Southwest United States led to continued excessive heat conditions across the region from the end of July into the beginning of August.
• Excessive Heat and Heat in Arizona, July 19 to 23, 202232 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.
• Excessive Heat and Heat in Arizona, August 1 to 7, 202332 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.
• Excessive Heat and Heat in Arizona, June 6 to 12, 202231 deaths · 34 eventsA strong ridge of high pressure built in across the Southwest heading into the middle part of June, bringing excessive heat conditions to the region.
• Excessive Heat in Nevada, July 22 to 29, 201628 deaths · 2 eventsTemperatures in Las Vegas reached Excessive Heat Warning levels on seven of eight days. There were 15 direct and 13 indirect heat related fatalities from the 23rd through the 31st.
• Excessive Heat in Illinois, July 4 to 7, 201225 deaths · $750,000 · 18 eventsNorthern Illinois experienced an intense heat wave during the first week of July. High temperatures at Chicago O'Hare Airport reached 102 on the 4th, 103 on the 5th and 6th and 98 on the 7th.
• Excessive Heat in Pennsylvania, July 21 to 24, 201125 deaths · 60 injured · 10 eventsOne of the most oppressive heat waves since mid July 1995 enveloped Eastern Pennsylvania from July 21st through the 24th. The heat was responsible for twenty-five deaths, twenty-two within Philadelphia and dozens of heat related injuries.
• Excessive Heat and Heat in Arizona, July 6 to 10, 202325 deaths · 19 eventsThe Desert Southwest continued to remain under the influence of an upper level ridge of high pressure during the July 6-10th time period. As a result, high temperatures in Phoenix continued to reach or exceed 110 degrees each day with the 6th reaching a high of 115 degrees.
• Excessive Heat and Heat in Arizona, July 8 to 12, 202424 deaths · 10 eventsHot temperatures typically 7 to 11 degrees above normal were experienced across southeast Arizona July 8-12.
• Excessive Heat and Heat in Arizona, July 26 to 31, 202023 deaths · 35 eventsAnomalously strong high pressure over the Southwest led to temperatures climbing at or above 115 degrees. Temperatures peaked in Phoenix on the 30th at 118 degrees, which ended up being the hottest day of the year.
• Excessive Heat and Heat in Arizona, June 26 to 30, 202423 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.
• Excessive Heat in Pennsylvania, June 7 to 10, 200822 deaths · 33 injured · 10 eventsThe most oppressive heat wave of the meteorological summer affected Eastern Pennsylvania from June 7th through the 10th. There were about twenty heat related deaths, eighteen within Philadelphia. There were also a couple of drownings within rivers.

• Excessive Heat in Iowa, July 15 to 28, 2011$6.9 million · 51 events
• Excessive Heat in California, August 14 to 20, 2020$6.0 million · 15 events
• Excessive Heat in California, August 2 to 6, 2019$1.5 million · 3 events
• Excessive Heat in Minnesota, July 18 to 20, 20111 death · $1.0 million · 42 events
• Excessive Heat in Illinois, July 4 to 7, 201225 deaths · $750,000 · 18 events
• Excessive Heat in North Dakota, July 16 to 19, 2011$700,000 · 36 events
• Excessive Heat in Missouri, August 3, 2011$324,000 · 1 event
• Excessive Heat in Iowa, July 17 to 20, 20114 injured · $272,000 · 8 events
• Excessive Heat in Kansas, July 19 to 20, 2010$240,000 · 10 events
• Excessive Heat in Texas, August 4, 2011$200,000 · 1 event
• Excessive Heat in Minnesota, July 17 to 20, 2011$156,000 · 7 events
• Excessive Heat in Kansas, July 10, 2011$108,000 · 1 event
• Excessive Heat in Tennessee, August 4, 201025 injured · $100,000 · 22 events
• Excessive Heat in Kansas, July 14 to 31, 20115 deaths · $100,000 · 26 events
• Excessive Heat in Oregon, June 26 to 29, 2021118 deaths · $100,000 · 12 events
• Excessive Heat in Louisiana, August 1 to 2, 20101 death · $90,000 · 2 events
• Excessive Heat in Wisconsin, July 17 to 20, 20112 deaths · 8 injured · $76,000 · 13 events
• Excessive Heat in Minnesota, July 15 to 20, 2011$43,000 · 8 events
• Excessive Heat in South Dakota, July 15 to 20, 2011$30,000 · 24 events
• Excessive Heat in Missouri, July 31, 2011$30,000 · 1 event
• Excessive Heat in Missouri, July 17 to 25, 20111 death · 57 injured · $25,000 · 3 events
• Excessive Heat and Heat in Pennsylvania, June 8 to 9, 20111 death · 3 injured · $25,000 · 10 events
• Excessive Heat in Arizona, June 28 to 30, 20133 injured · $25,000 · 2 events
• Excessive Heat in Nevada, June 28 to 30, 20133 deaths · 358 injured · $25,000 · 2 events
• Excessive Heat in South Dakota, July 25 to 27, 2024$24,000 · 16 events

• 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.