Even relative humidity is flattened. We were talking dews not temps and over a period of a 120 years not a month. Yes this July has been very hot all can agree. The initial point that we are now what the Middle Atlantic used to be is poppycock
Just looking at averages , July is a degree warmer in Boston. June is a wash and August .5 Would take an exceptional human to notice. We are only talking dews not RH