Beginning July 20, Springfield entered its average hottest stretch of temperatures. The average high temperature in Springfield from July 20 to August 11 is 90° or more. During this period, the average high temperature reaches its peak on August 1 at 90.4°.
The average high temperature is different from the average temperature. The average temperature is the average taken between the high and low temperatures. For example, the average high temperature on July 22 is 90.1° and the average low temperature is 69.1°. This means the average temperature on July 22 is 79.6°.
Using the average temperature, we find that the hottest day in Springfield is July 28 with an average temperature of 79.7°…