Heat in Ohio

Events

248

Deaths

16

Injuries

0

Damage

$20,000

• Heat in Ohio, July 20 to 31, 199913 deaths · 32 eventsThe last part of July was very hot and humid across the state with temperatures reaching into the 90s most days and above 100 for a few days. The dewpoints and overnight lows were in the 70s through much of the period.
• Heat in Ohio, July 1 to 7, 20123 deaths · 32 eventsAn ongoing heat wave continued from late June into early July. Areas still affected by power outages caused by the June 29 derecho were especially impacted.
• Heat in Ohio, June 28 to 30, 201232 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 Ohio, June 6 to 12, 199930 eventsTemperatures across northern Ohio were much above normal. Temperatures reached the lower 90s with record highs set in Findlay, Cleveland, Mansfield and Youngstown.
• Heat in Ohio, July 1 to 31, 199929 eventsTemperatures across northern Ohio were much above normal. High temperatures reached the middle 90s several days and five daily record high temperatures were established at Mansfield and Youngstown.
• Heat in Ohio, June 19, 2018$20,000 · 1 eventDuring a three day period of very hot temperatures, a section of I-77 buckled in Washington County on the 19th. Nearby, the Beverly cooperative observer reported highs of 92 on the 18th, 91 on the 19th and 90 on the 20th.
• Heat in Ohio, February 21, 19979 eventsAfternoon temperatures reached into the 70 to 75 degree range. For example, Jackson, McConnelsville, Carpenter, and New Lexington all reported 73 degrees. In Washington County, Marietta observed 74 degrees, while Newport had 75 degrees.
• Heat in Ohio, January 1 to 5, 19979 eventsA prolong warm spell carried over into the new year from lateDecember. The warm weather peaked on the 4th, with 60scommon. Overnight low readings were unusally mild, withreadings of 45 to 55 common.
• Heat in Ohio, September 14 to 15, 19989 eventsThe hottest temperatures of the summer occurred. Readings reached the mid and upper 90s. Preliminary cooperative observations had 97 degrees as a maximum temperature on the 14th for Athens and Waterloo, Carpenter had 92 degrees, Marietta and Jackson recorded 95.
• Heat in Ohio, December 6, 19989 eventsAfternoon temperatures peaked in the low and mid 70s. South Point was 76 degrees, Gallipolis 75, Marietta, McConnelsville, and Jackson all registered 74, Athens 73, and New Lexington had 72. It marked the climax of an unusual 2 week warm spell.
• Heat in Ohio, March 26 to 31, 19989 eventsAn unusually long stretch of early spring heat lasted 6 consecutive days. Afternoon temperatures were in the 80s.
• Heat in Ohio, January 22, 19999 eventsAfternoon temperatures in the 70s were common across southeast Ohio. For example, Beverly had 77 degrees, Gallipolis saw 76 degrees, while South Point had 75.
• Heat in Ohio, February 11, 19999 eventsAfternoon temperatures soared well into the 70s across southeast Ohio. Beverly, Gallipolis, and South Point all saw 77 degrees, while Jackson had 76. Marietta, Athens, and McConnelsville all registered 75 degrees. New Lexington observed 73 degrees.
• Heat in Ohio, December 1 to 23, 20019 eventsIndian summer conditions lingered well into December. Daytime readings in the 50s and 60s were common. On the 5th, South Point reached 77 degrees, Gallipolis had 76 degrees, Marietta saw 75 degrees, New Lexington 74 degrees, while both Athens and Jackson observed 72 degrees.
• Heat in Ohio, July 28 to 29, 20119 eventsAnother surge of heat and humidity occurred on the 28th and 29th. Temperatures peaked from 90 to the mid 90s. The heat index reached into the 100 to 105 degree range.
• Heat in Ohio, July 20 to 22, 20119 eventsThe heat and humidity levels peaked from Wednesday the 20th through Friday the 22nd. High temperatures from 90 to the mid 90s were common. However, the hottest temperatures were near the Ohio River. For example, Gallipolis reached 99 degrees on both the 21st and 22nd.
• Heat in Ohio, July 12, 20112 eventsHot and humid conditions were felt during the afternoon of the 12th. Temperatures were in the low and mid 90s, while dew points were in the low and mid 70s. The heat index or the apparent temperature reached around 105 degrees.

Heat everywhereEvery kind of event in Ohio

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.