Beaverton (OR) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Beaverton.
Climate overview of Beaverton
Beaverton, Oregon, United States of America, sees big temperature differences between seasons, with July peaking at 27°C (81°F) and December dropping to 8°C (46°F).
With around 1055 mm (42 in) of annual rain/snowfall, Beaverton has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has a distinct dry season from July to August, with warm summers and cold winters. The wettest month is December. The sunniest month is July, with 11.1 hours of sunshine per day on average.
Beaverton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Beaverton - and find the best time to visit.
Monthly Temperature in Beaverton
Visitors to Beaverton can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In December, the coolest month of the year, temperatures drop to a chilly 8°C (46°F).
At night, temperatures range from around 13°C (55°F) in July to 2°C (36°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Beaverton
Beaverton is known for its substantial rain/snowfall, with annual precipitation reaching 1055 mm (42 in). Beaverton can be quite wet during December, receiving approximately 183 mm (7.2 in) of precipitation over 21 rainy days.
In contrast, during the driest month (August), you will experience much drier conditions, with 11 mm (0.4 in) of precipitation spread across 3 rainy days. For more details, please visit our Beaverton Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Beaverton
Beaverton can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.1 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.1 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Beaverton by Month
The relative humidity is high throughout the year in Beaverton.
The city experiences its highest humidity in December, reaching 83%. In July, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Beaverton
The average wind speed over the year ranges from 2 m/s (4 knots) to 4 m/s (8 knots). It is lower in September and October and higher in January. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Beaverton
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, February, March, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from July to August, with warm summers and cold winters
Frequently asked questions about the climate in Beaverton
What is the best time to visit Beaverton?
May, June, July, August and September typically offer the most optimal weather in Beaverton. In contrast, January, March, November and December tend to have less optimal conditions. Beaverton has a distinct dry season from July to August, with warm summers and cold winters.
What temperatures can I expect in Beaverton?
Daytime highs range from 8°C (46°F) in December to 27°C (81°F) in July. Nighttime lows range from 2°C (36°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Beaverton get?
Annual rainfall is around 1055 mm (42 in). December is the wettest month with 183 mm (7.2 in), while August is the driest with 11 mm (0.4 in).
How sunny is Beaverton?
Beaverton receives around 2,341 hours of sunshine per year. July is the sunniest month with 332 hours, while December is the cloudiest with just 64 hours. Overall, Beaverton enjoys abundant sunshine.
Beaverton 3-Day Forecast
Beaverton (OR) 3-Day Forecast
Beaverton on the map
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