However, Pendleton, Oregon is where the hottest temperature in the state has been recorded. This puts Oregon as the 12th highest hottest temperature by state. The 119 isn’t the only time the city has seen extreme heat, as the highest temperature recorded in June was 117 degrees. The most likely place in Oregon to see a temperature like this is a place like Pendleton. While it’s true their highest temperature was 116 degrees, the second highest was only 108.