Weather By Day

October Portland Weather 
October Portland Weather
Record High: 92°F
Normal High: 63°F
Normal Low: 45°F
Record Low: 26°F
Avg Monthly Rain: 2.88"
Rec 1 Day Rain: 2.44"

Portland Weather In October

The highest recorded temperature for Portland for the past 70 years in October was 92 degrees Fahrenheit, measured on October 1, 1987, while the regular high temperature is 63. In the last 70 years the lowest measured October temperature in Portland was 26 most recently encountered on October 29, 1971, while the regular low temperature for a given day during the month is 45.

US National Weather Service Portland October Weather data records that on October 15, 1954, the high temperature did not exceed -72 degrees Fahrenheit, the lowest high measured in Portland in the past 70 years. Weather Service records additionally show that on October 21, 2003, the recorded low temperature for the day did not drop below 63 degrees, the highest low measured in Portland in the last 70 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Portland on October First is 44 degrees Fahrenheit and the average high on the last day of October is 39 degrees. The low recorded temperature in Portland on October First averages 32 degrees Fahrenheit and the low temperature on the final day of October averages 27 degrees.

Portland typically receives an average of 2.88 inches of precipitation during the month. The most precipitation measured in a single day, as indicated by October Portland Weather data, was 2.44 inches on October 31, 1994.