New York City hit 103 degrees today shortly before 1 pm, with a heat index of 115 (courtesy of a 76 degree dewpoint) measured before noon.
Newark: 108 and counting...
Short take: The weather misery has much more to do with the humidity and the very high dewpoint (measuring the ability of moisture to evaporate), than the air temperature. Dry heat is more tolerable.
Eric Dixon LLC
World-Class Strategic Analysis