Weather By Day

August Waterloo Weather 
August Waterloo Weather
Record High: 105°F
Normal High: 83°F
Normal Low: 60°F
Record Low: 33°F
Avg Monthly Rain: 4.08"
Rec 1 Day Rain: 4.92"

Waterloo Weather In August

The highest recorded temperature for Waterloo Iowa for the past 62 years in August was 105 degrees Fahrenheit, registered on August 1, 1988, and the normal high is 83. The lowest documented temperature for Waterloo for the past 62 years in August was 33 most recently registered on August 20, 1950, while the average low temperature is 60.

United States NWS historical Waterloo August Weather data records that on August 25, 1987, the high temperature did not exceed 57 degrees Fahrenheit, the lowest high measured in Waterloo in the past 62 years. Weather Service data also shows that on August 2, 1988, the lowest recorded temperature for the day did not drop below 80 degrees, the highest low measured temperature in Waterloo in the last 62 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Waterloo on August First is 84 degrees Fahrenheit and the average high on the last day of August is 79 degrees. The low measured temperature in Waterloo on August First averages 62 degrees and the low on the last day of the month averages 57 degrees.

Waterloo usually receives an average of 4.08 inches of precipitation during the month. The most precipitation measured in a single day, as indicated by August Waterloo Weather data, was 4.92 inches on August 20, 1966.