Weather By Day

August Weather In Portland  
August Portland Weather
Record High: 107°F
Normal High: 77°F
Normal Low: 57°F
Record Low: 44°F
Avg Monthly Rain: 3.05"
Rec 1 Day Rain: 1.46"

Portland Weather In August

The hottest day in Portland Maine in August for the past 70 years was 107 degrees Fahrenheit, most recently measured on August 10, 1981, while the normal high temperature is 77. The coldest day reported in Portland in August for the past 70 years was 44 most recently registered on August 31, 1951, while the standard low daily temperature for the month is 57.

United States National Weather Service historical Portland August weather data indicates that on August 2, 1956, the measured high temperature did not exceed 58 degrees Fahrenheit, the lowest high measured in Portland in the past 70 years. Weather Service records also indicate that on August 25, 1996, the low temperature for the day was not measured below 68 degrees, the highest low measured in Portland in the last 70 years.

According to the National Weather Service, the high temperature in Portland in August on the first day of the month averages 44 degrees and the high on the last day of the month averages 39 degrees. The low recorded temperature in Portland on August First averages 32 degrees Fahrenheit and the low temperature on the final day of August averages 27 degrees.

Portland typically receives an average of 3.05 inches of rain during the month. August Portland Weather records show that on August 25, 1977 Portland received 1.46 inches of rain, the most rain measured in a single day in August.