ACCUWEATHER - While the heat wave and virtual sauna over the Northeast and Midwest has broken few records, multiple days and nights of high humidity and light winds with the event are leaving an impression.
For many locations, Thursday was day five of the heat wave, which began last weekend. And in some areas there are a couple more days of sweltering to go.
The heat wave is hitting around what is typically the hottest part of the summer, when the days are long, the sun is intense and the nights are short. (On Thursday, Alaska were the only states that did not reach 90 degrees).
With limited time to cool down at night, temperatures get a jumpstart during the midday.
As anticipated by AccuWeather.com meteorologists, record high temperatures have been scarce, while the nights have been especially rough for those without air conditioning, especially in the major cities.
During Wednesday night, temperatures failed to drop below 80 degrees in Washington, D.C., New York City and Minneapolis and barely dipped below 80 in Boston, Philadelphia, Louisville, Ky., and Milwaukee.
During Tuesday night, warm-night records on the books for over 100 years were tied in New York City and Milwaukee. Both cities only dipped to 79 degrees for an overnight low. The last time this happened was in 1878 in Milwaukee and 1907 in New York. In the southern city of Raleigh, N.C., the temperature only dipped to 75 degrees, breaking the old warm-night record of 73 degrees set in 1925.
During the day, the combination of the heat, high humidity, light winds and intense sunshine pushed AccuWeather.com RealFeel® temperatures to well beyond 100 degrees and even past 110 in some locations.
The table below shows RealFeel, actual high and normal high temperatures for the heat wave through 3:00 p.m. EDT Thursday, July 18, 2013.
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