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

September weather forecast and climate
Roseburg, OR

The first month of the autumn, September, is still a warm month in Roseburg, Oregon, with average temperature ranging between min 51.4°F (10.8°C) and max 79.7°F (26.5°C).

Temperature

In September, the average high-temperature slightly decreases, from a warm 85.3°F (29.6°C) in August, to a still moderately hot 79.7°F (26.5°C). In September, the average low-temperature is 51.4°F (10.8°C).

Rainfall

In Roseburg, Oregon, in September, it is raining for 4.4 days, with typically 0.8" (20.8mm) of accumulated precipitation. In Roseburg, during the entire year, the rain falls for 138 days and collects up to 30.7" (779mm) of precipitation.

Daylight

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

What is the temperature in September in Roseburg?

The average high-temperature, in September, in Roseburg, Oregon, is 79.7°F (26.5°C), while the average low-temperature is 51.4°F (10.8°C).

How many days does it rain in September in Roseburg?

In Roseburg, Oregon, during September, the rain falls for 4.4 days and regularly aggregates up to 0.8" (20.8mm) of precipitation.

How many hours of daylight does Roseburg have in September?

In September, the average length of the day in Roseburg is 12.5h.
Average temperature in September - Roseburg, OR
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (85.9°F).
The month with the lowest average high temperature is December (48.1°F).

  • Average low temperature in September: 51.4°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is December (36.8°F).

Average rainfall in September - Roseburg, OR
  • Average rainfall in September: 0.8"

The wettest month (with the highest rainfall) is December (7").
The driest month (with the lowest rainfall) is July (0.1").

Average rainfall days in September - Roseburg, OR
  • Average rainfall days in September: 4.4 days

The month with the highest number of rainy days is December (20.6 days).
The month with the lowest number of rainy days is July (1.1 days).

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

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9h).