Dayton, Ohio – Drivers and residents across southwest Ohio are dealing with unexpected early-season heat Sunday afternoon as temperatures surged to 85°F, breaking a record that stood for more than a century.
According to the National Weather Service in Wilmington, the temperature at Dayton International Airport reached 85 degrees by mid-afternoon Sunday, surpassing the previous record of 84 degrees set in 1907. Forecasters noted an updated final record will be confirmed later tonight, but the milestone has already been secured.
The heat pushed well beyond typical late-March averages across the Miami Valley, with cities including Springfield and Middletown also climbing into the low to mid-80s. The spike increased demand on home cooling systems and created warmer road surface conditions, especially on heavily traveled routes like I-75 and U.S. Route 35 during peak afternoon travel.
Residents are urged to stay hydrated, limit strenuous outdoor activity during peak heat, and check on vulnerable neighbors. While not extreme by summer standards, this level of heat this early in the season can catch people off guard.
Temperatures are expected to ease after sunset Sunday, with cooler air moving in overnight. Additional updates are expected as the National Weather Service finalizes the record and tracks the incoming cooldown.
