Average temperature in Sisters (OR)
The mean minimum and maximum temperatures over the year in Sisters (Oregon), the United States of America.
- The months of June, July, August and September have nice average temperatures.
- On average, the warmest month(s) are July and August.
- On average, the warmest month is July with 30°C.
- On average, the coolest month is December with 4°C.
- The average annual maximum temperature is 16°C.
- The average annual minimum temperature is -0°C.
Weather Forecasts for Sisters (OR)
partly cloudy and no rain
overcast and slight rain
broken clouds and no rain