Beaverton
Oregon, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Beaverton, OR

Colored yellow, brown, and golden tree colors under a perfect blue, cloudy sky in the fall, mirrored in the calm lake water in Beaverton, Oregon
Colored yellow, brown, and golden tree colors under a perfect blue, cloudy sky in the fall, mirrored in the calm lake water in Beaverton, Oregon
September, the first month of the autumn, in Beaverton, is also a moderately hot month, with temperature in the range of an average low of 50°F (10°C) and an average high of 75°F (23.9°C).

Temperature

In Beaverton, the average high-temperature in September is almost the same as in August - a still warm 75°F (23.9°C). In Beaverton, in September, the average low-temperature is 50°F (10°C).

Rainfall

During September, Beaverton regularly aggregates up to 1.6" (41.7mm) of precipitation. Throughout the year, in Beaverton, Oregon, 40" (1014.8mm) of rain is accumulated.

Daylight

In Beaverton, the average length of the day in September is 12.5h.

What is the temperature in September in Beaverton?

The average high-temperature, in September, in Beaverton, is 75°F (23.9°C), while the average low-temperature is 50°F (10°C).

How much does it rain in Beaverton in September?

During September, Beaverton regularly aggregates up to 1.6" (41.7mm) of precipitation.

What is the average length of the day in September in Beaverton?

The average length of the day in September is 12.5h.
Average temperature in September - Beaverton, OR
  • Average high temperature in September: 75°F

The warmest month (with the highest average high temperature) is August (80°F).
Months with the lowest average high temperature are January and December (46°F).

  • Average low temperature in September: 50°F

Months with the highest average low temperature are July and August (54°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average rainfall in September - Beaverton, OR
  • Average rainfall in September: 1.6"

The wettest month (with the highest rainfall) is December (6.4").
The driest month (with the lowest rainfall) is July (0.7").

Average daylight in September - Beaverton, OR
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.6h).
The month with shortest days is December (Average daylight: 8.8h).