The all-time hottest temperature ever recorded in Portland, and in the state of Oregon.
These are the ten all-time hottest weather temperature days recorded in the city of Portland, Oregon. The temperature data for Portland dates back to 1940. Most people do not associate the city of Portland with hot weather, but it can get hot here.
The hottest temperature ever recorded in Portland, Oregon is 107 degrees, which occurred on August 10, 1981, August 8, 1981 and July 30, 1965. The hottest temperature ever recorded in the state of Oregon is 119 degrees, which occurred on August 10, 1898 in Pendleton.
One hundred degree weather days are not that uncommon in Portland. There have been 100 degree weather days in May, June, July, August and September. In addition, the months of April and October have had 90 degree weather temperature days.
10 All-Time Hottest Weather Temperature Days in Portland
T-1. August 10, 1981 - 107 degrees
T-1. August 8, 1981 - 107 degrees
T-1. July 30, 1965 - 107 degrees
T-4. July 29, 2009 - 106 degrees
T-4. July 28, 2009 - 106 degrees
T-6. September 2, 1998 - 105 degrees
T-6. August 9, 1981 - 105 degrees
T-6. August 17, 1977 - 105 degrees
T-6. July 1, 1942 - 105 degrees
T-10. July 21, 2006 - 104 degrees
It has been 104 degrees in Portland at other times, just the last occurrence is listed above.
The hottest month of the year in Portland is August, which has an average daily mean temperature of 68.5 degrees, followed closely by July with an average daily mean temperature of 68.1 degrees. The next hottest month is September 63.6 degrees, followed by June at 62.7 degrees. The annual average mean temperature in Portland is 53.5 degrees. The maximum annual mean temperature is 62.1 degrees, while the annual average minimum mean is 44.8 degrees.
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