Excessive Heat in Indiana

Events

206

Deaths

4

Injuries

16

Damage

None recorded

• Excessive Heat in Indiana, July 1 to 8, 20123 deaths · 6 eventsThe historic heat wave that began in late June continued into July. This heat was comparable to the intense heat experienced in the 1930's. The high temperature exceeded 100 degrees on 10 out of 11 days going back to June 28 and ending on July 8.
• Excessive Heat in Indiana, July 21, 20111 death · 1 eventAn extended period of hot and humid conditions occurred over the region with afternoon highs in the mid to upper 90s and overnight lows in the mid 70s to around 80.
• Excessive Heat in Indiana, August 3 to 4, 201010 injured · 6 eventsExcessively high heat indices were recorded in the late morning and afternoon hours of both the 3rd and 4th. On the 3rd, the heat index peaked near 115 degrees at the Evansville airport. Similar values were measured elsewhere in southwest Indiana.
• Excessive Heat in Indiana, July 28 to 29, 20156 injured · 6 eventsHeat indices peaked around 110 degrees on two consecutive afternoons. The maximum observed heat index at the Evansville airport was 110 degrees on the 29th.
• Excessive Heat in Indiana, August 20 to 25, 202337 eventsA very broad and stacked ridge of subtropical high pressure built northward over most of the United States, bringing unseasonable heat and at times record high dewpoints to much of the Midwest.
• 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.
• Excessive Heat in Indiana, June 29 to 30, 202612 eventsOn June 29th into early July 2026, a stacked subtropical ridge built northward from the Mississippi Delta through most of North America's eastern half, with its center nearly stationary near the Tennessee Valley.
• 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.
• Excessive Heat in Indiana, June 14, 20229 eventsFollowing a northward-progressing warm frontal zone, a strong, broad, subtropical upper-level ridge built over central Indiana by June 14th. Associated heat and at times record-high dewpoints (for June) then lasted for several days across the region.
• Excessive Heat in Indiana, July 19, 20198 eventsWith a combination of high temperatures in the 90s and added humidity, heat index values across the region reached into the triple digits.
• Excessive Heat in Indiana, July 20, 20198 eventsWith a combination of high temperatures in the 90s and added humidity, heat index values across the region reached into the triple digits for a second day in a row.
• Excessive Heat in Indiana, August 9 to 15, 20106 eventsA strong and very persistent high in the upper levels of the atmosphere was responsible for seven consecutive days of heat indices at or above 105 degrees.
• Excessive Heat in Indiana, July 11 to 12, 20116 eventsHigh pressure in the middle and upper levels of the atmosphere expanded east-northeast from the southern Plains. As this high expanded across the Lower Ohio Valley, it brought a couple days of excessive heat and humidity.
• Excessive Heat in Indiana, July 19 to 23, 20116 eventsA large and strong high in the upper levels of the atmosphere drifted slowly east from the central Plains across the Lower Ohio Valley. This strong upper-level high brought several consecutive days of dangerously high heat and humidity.
• Excessive Heat in Indiana, June 29 to 30, 20126 eventsThis stretch of heat was the beginning of an historic heat wave comparable to the intense heat experienced in the 1930's. The high temperature exceeded 100 degrees on the final three consecutive days of the month. At Evansville, a record high of 107 degrees was set on the 28th.
• Excessive Heat in Indiana, July 18 to 19, 20126 eventsHigh temperatures once again climbed over the 100-degree mark after being in the 90's for about ten days. The high at Evansville was 103 on the 18th and 101 on the 19th. The high of 103 on the 18th broke the daily record by one degree.
• Excessive Heat in Indiana, July 23 to 26, 20126 eventsTriple-digit high temperatures returned for a few more days late in the month. The hottest days of this heat wave were on the 24th and 25th, when the highs at Evansville reached 104 and 103 respectively.
• Excessive Heat in Indiana, July 19 to 22, 20176 eventsA large upper-level high resulted in four consecutive days of dangerously high heat indices from 105 to 115 degrees. The large high in the upper levels of the atmosphere expanded over much of the southern two-thirds of the United States for several days.
• Excessive Heat in Indiana, July 4 to 6, 20226 eventsA heat wave gripped southwest Indiana for a few days. From the 4th to the 6th, peak afternoon heat indices ranged from 101 to 112 degrees. The hottest day in southwest Indiana was the 5th, when the heat index peaked at 109 degrees at the Evansville airport.
• Excessive Heat in Indiana, July 20, 20226 eventsHeat indices topped 110 degrees across southwest Indiana in the afternoon. Peak heat indices ranged from 110 at Evansville to 115 at Huntingburg. A hot and humid southwest wind flow ahead of a cold front brought temperatures up to the lower 90's.
• Excessive Heat in Indiana, June 13 to 16, 20226 eventsA strong upper level ridge of high pressure developed across the Ohio and Tennessee Valleys, producing a record-breaking early season heat wave. Evansville broke two daily record highs and three daily record warm lows.
• Excessive Heat in Indiana, August 20 to 25, 20236 eventsA large ridge of high pressure aloft set up over the center of the country around August 20th, leading to a week-long heatwave across southwest Indiana.
• Excessive Heat in Indiana, August 7 to 10, 20075 eventsOppresively hot and humid weather with heat indices near 105 degrees impacted southeast Indiana from August 7 through August 10.
• Excessive Heat in Indiana, July 4 to 7, 20125 eventsHigh temperatures were in the upper 90s to lower 100s July 4th through the 7th. Low temperatures were mostly in the upper 70s to lower 80s. Peak heat index values were in the range of 105 to 115 each day.

Excessive 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.