Portland Weather In July
The record high temperature in Portland for the last 70 years in July was 107 degrees Fahrenheit, on July 30, 1965, while the mean high temperature is 79. The lowest measured temperature in Portland for the last 70 years in July was 43 most recently registered on July 2, 1955, and the standard low recorded daily temperature is 57.
National Weather Service historical Portland July Weather data indicates that on July 20, 1954, the recorded high did not exceed 60 degrees Fahrenheit, the lowest high measured in Portland in the past 70 years. NWS weather data additionally shows that on July 27, 1998, the lowest recorded temperature on that day did not drop below 72 degrees, the highest low measured in Portland in the last 70 years.
NWS data indicates that the daily high temperature in Portland on July First averages 44 degrees Fahrenheit and the high on the last day of July averages 39 degrees. The low recorded temperature in Portland on July First averages 32 degrees Fahrenheit and the low temperature on the final day of July averages 27 degrees.
Portland typically receives an average of 0.72 inches of precipitation during the month. The most rain recorded in a single day, as shown by July Portland Weather data, was 1.05 inches on July 9, 1995.