Sisters (OR) Weather and Climate: A Comprehensive Guide
The temperature in Sisters can vary quite a bit throughout the year.
Temperatures can be warm during the warmest months,
and cold during the cooler months.
It maintains fairly dry conditions year-round.
Now, let’s explore all the climate details to give you a full picture.
Average maximum day and minimum night temperature
Visitors to Sisters can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 30°C in July, the warmest time of the year, to a chilly 4°C during cooler months like December.
At night, temperatures typically drop to an average of around -6°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Sisters typically sees modest rain/snowfall throughout the year, with an average annual precipitation of 336 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives moderate snow/rainfall, averaging 72 mm of precipitation, recorded across 17 snowy/rainy days. In contrast, the drier season, July brings less rainfall, with 6.7 mm over 2 rainy days. For more details, please visit our Sisters Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
overcast and rain broken clouds and slight rain broken clouds and rainForecast for Sisters (OR)
1 m/s
3 m/s
3 m/s
The best time of year to visit Sisters in the United States of America
During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Yes, the months of April, July, August and September are very dry.
July has an average maximum temperature of 30°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 4°C.
December tops the wettest month list with 72 mm of rainfall.
July is the driest month with 7 mm of precipitation.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
