1953 had a historically hot summer for us too, with two legendary historic heatwaves with 4 100+ degree days spread evenly between them and even a historic severe wx outbreak with an F4 tornado in Worcester, MA!!
1953: The warmest June on record occurred in Oklahoma City, OK. The main part of the heat wave extended from the 11th through the 21st, and seven of the daily high temperatures during that stretch remain records for their respective dates. June 14th was the hottest day, reaching a toasty 106°. The other records ranged from 100° to 105°. Even the nighttime lows were records. Eight daily minimum temperatures from June 1953 are still record-warm daily minimum temperatures, ranging from 75° to 80°. (Ref. Wilson Wx. History)