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

September weather forecast and climate
Wilsonville, OR

A row of beautiful modern homes in a leafy suburb spot in Wilsonville, Oregon, in the fall colors with the beauty of the clear
A row of beautiful modern homes in a leafy suburb spot in Wilsonville, Oregon, in the fall colors with the beauty of the clear
The first month of the autumn, September, is also a moderately hot month in Wilsonville, Oregon, with average temperature ranging between max 75.9°F (24.4°C) and min 51.1°F (10.6°C).

Temperature

In Wilsonville, the average high-temperature marginally drops, from a warm 82°F (27.8°C) in August, to a still moderately hot 75.9°F (24.4°C). The average low-temperature, in Wilsonville, is 51.1°F (10.6°C).

Rainfall

In Wilsonville, 1.5" (39.1mm) of precipitation is typically accumulated. Throughout the year, in Wilsonville, 42.6" (1082.4mm) of rain is accumulated.

Daylight

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

What is the temperature in September in Wilsonville?

The average high-temperature, in September, in Wilsonville, is 75.9°F (24.4°C), while the average low-temperature is 51.1°F (10.6°C).

How much does it rain in Wilsonville in September?

In Wilsonville, Oregon, in September, 1.5" (39.1mm) of precipitation is typically accumulated.

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

The average length of the day in September in Wilsonville is 12.5h.
Average temperature in September - Wilsonville, OR
  • Average high temperature in September: 76°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (46°F).

  • Average low temperature in September: 51°F

Months with the highest average low temperature are July and August (55°F).
The coldest month (with the lowest average low temperature) is December (34°F).

Average rainfall in September - Wilsonville, OR
  • Average rainfall in September: 1.5"

Wettest months (with the highest rainfall) are November and December (6.6").
Driest months (with the lowest rainfall) are July and August (0.6").

Average daylight in September - Wilsonville, 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).