Historically, these are the hottest weeks of the summer in terms of pure temperature readings (not taking into account humidity).
In Omaha, the average daytime high reaches its maximum level — 88 degrees — from July 8 to July 20.
Likewise, the average overnight low peaks at 67 from July 14 to July 23.
Highs during this period range from 102 to 110 degrees. Omaha's record high of 114 degrees was set July 25, 1936.
Source: National Weather Service