Average temperature in Portland (OR)
The mean minimum and maximum temperatures over the year in Portland (Oregon), the United States of America.
- The months of May, June, July, August and September have nice average temperatures.
- On average, the warmest month is August with 28°C.
- On average, the coolest month is December with 7°C.
- The average annual maximum temperature is 17°C.
- The average annual minimum temperature is 7°C.
Weather Forecasts for Portland (OR)
overcast and heavy rain
partly cloudy and small chance of slight rain
almost clear and no rain