Heat in Indiana

Events

401

Deaths

1

Injuries

4

Damage

None recorded

• Heat in Indiana, June 14, 20001 death · 1 eventA 52 year old woman with an extensive medical history died in her apartment from heat stroke. Her landlord turned off her air conditioning and the room temperature was at 109.8 degrees when she was found.
• Heat in Indiana, July 26 to 27, 199741 events
• Heat in Indiana, July 21 to 26, 20054 injured · 6 eventsSeveral days of excessive heat and humidity caused a significant increase in heat-related illnesses. A local hospital in Gibson County reported treating four people, all of whom were involved in outdoor activities. Statistics from Evansville hospitals were unavailable.
• Excessive Heat and Heat in Indiana, July 1 to 5, 201812 eventsThe prolonged period of hazardous heat and humidity that began on June 29th persisted through the first several days of July. The most dangerous heat index values occurred on July 5th, when afternoon heat indices peaked around 110 degrees.
• Excessive Heat and Heat in Indiana, July 23 to 30, 202512 eventsAn extended heat wave across the Quad State region occurred from mid to late July. On the synoptic scale, at 500mb, a 594dam ridge was present across the Southeast U.S., with the ridge building northward to include the Ohio Valley and Great Lakes by July 22nd-23rd.
• Heat in Indiana, July 16 to 20, 202511 eventsAn extended heat wave across the Quad State region occurred from mid to late July. On the synoptic scale, at 500mb, a 594dam ridge was present across the Southeast U.S., with the ridge building northward to include the Ohio Valley and Great Lakes by July 22nd-23rd.
• Excessive Heat and Heat in Indiana, August 1 to 3, 201110 eventsA large and strong high in the upper levels of the atmosphere remained centered over the south central United States. The strength and size of the high brought excessive heat as far northeast as the Lower Ohio Valley and Mid-Mississippi Valley.
• Heat in Indiana, August 16 to 19, 20259 eventsBroad high pressure over the middle Mississippi River Valley resulted in temperatures surging to the mid-90s with dew points in the mid-70s, yielding heat indices around 105 on the 16th and 18th-19th in portions of Southwest Indiana.
• Heat in Indiana, July 20 to 31, 19998 eventsThe latter part of the month was extremely hot with highs above 90 nearly every day and a few days with readings above 100. Dewpoints and overnight low were in the 70s. No known heat related deaths occurred in southeastern Indiana.
• Heat in Indiana, June 28 to 30, 20128 eventsA very warm airmass moved into the region during late June. This airmass brought a prolonged period of above normal temperatures, record heat, and dangerous heat indices to much of southwestern Ohio, southeastern Indiana, and northern Kentucky.
• Heat in Indiana, July 1 to 7, 20128 eventsAn ongoing heat wave continued from late June into early July.
• Heat in Indiana, July 25 to 28, 19976 eventsHigh temperatures rose into the mid to upper 90s for three consecutive days. High humidity raised the heat index to between 105 and 115 degrees. The potentially hazardous conditions prompted the issuance of a heat advisory.
• Heat in Indiana, December 1 to 8, 19986 eventsTemperatures averaged some 20 to 30 degrees above normal during the first week of the month. Daytime highs were in the upper 60s and lower 70s most of the week. The warm weather resulted in less business for the heating industry.
• Heat in Indiana, February 1 to 28, 19986 eventsThe month of February averaged well above normal. At Evansville, this was the sixth warmest February on record. The mild temperatures provided area residents with unusual opportunities for outdoor recreation.
• Heat in Indiana, July 18 to 31, 19996 eventsProlonged heat and humidity set in around mid month and continued through the latter half of July. High temperatures were in the 90s for the last 14 days of the month, including a 98-degree reading on the 30th.
• Heat in Indiana, August 19 to 20, 20056 eventsThe heat index topped 105 degrees across most of southwest Indiana on two consecutive afternoons. At Evansville, the official peak heat indices were 106 degrees on the 19th and 107 on the 20th.
• Heat in Indiana, July 31, 20066 eventsHeat indices rose to around 105 degrees during the afternoon hours. At the Evansville airport, the highest observed hourly heat index was 105 degrees.
• Heat in Indiana, August 1 to 2, 20066 eventsHeat indices across southwest Indiana rose to 105 degrees or more on the afternoons of August 1st and 2nd. At Evansville, the heat index peaked at 107 degrees on August 1st and 105 degrees on August 2nd.
• Heat in Indiana, August 15 to 16, 20076 eventsA large and strong high in the upper levels of the atmosphere brought a resurgence of triple digit heat. Heat indices again topped 105 degrees on a couple of afternoons. The primary utility company serving southwest Indiana set record usage peaks.
• Heat in Indiana, August 5 to 9, 20076 eventsSurface high pressure located over the Deep South remained nearly stationary. A persistent hot and humid southwest wind flow around this high brought an extended period of dangerously high heat indices, ranging from 105 to 110 degrees on several afternoons.
• Heat in Indiana, June 22 to 23, 20096 eventsA building dome of high pressure aloft was responsible for near record high temperatures. Combined with high humidity, the heat index soared to between 105 and 110 on the afternoon of the 22nd. In some places, the heat index peaked near 105 on the afternoon of the 23rd.
• Heat in Indiana, July 22 to 24, 20106 eventsA large upper level high remained stationary from the Tennessee Valley to the Carolinas. Heat and humidity built to dangerous levels near this strong and persistent high.
• Heat in Indiana, July 14 to 17, 20106 eventsA large upper level high over the south central states expanded over the Lower Ohio Valley on the 14th. This feature gradually retreated westward to the Southwest by the 18th.
• Heat in Indiana, August 7, 20116 eventsIn the wake of a warm frontal passage, hot and humid conditions overspread southwest Indiana. The peak heat index on the 7th reached 107 degrees at Evansville.
• Heat in Indiana, July 27 to 28, 20116 eventsA large and strong high in the upper levels of the atmosphere became oriented from the central Plains eastward across the Lower Ohio Valley to the Atlantic coast. As this high expanded across the Lower Ohio Valley, it brought a couple days of high heat and humidity.

Heat everywhereEvery kind of event in Indiana

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.