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

September weather forecast and climate
Riddle, OR

September, the first month of the autumn, in Riddle, is still a warm month, with average temperature ranging between min 46.4°F (8°C) and max 79.5°F (26.4°C).

Temperature

In September, the average high-temperature marginally drops, from 85.1°F (29.5°C) in August, to a still moderately hot 79.5°F (26.4°C). In Riddle, in September, the average low-temperature is 46.4°F (8°C).

Rainfall

In September, the rain falls for 4 days. Throughout September, 0.9" (22.4mm) of precipitation is accumulated. In Riddle, Oregon, during the entire year, the rain falls for 122 days and collects up to 30.4" (771.8mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

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

What is the temperature in September in Riddle?

The average high-temperature, in September, in Riddle, Oregon, is 79.5°F (26.4°C), while the average low-temperature is 46.4°F (8°C).

How much does it rain in Riddle in September?

In Riddle, Oregon, during September, the rain falls for 4 days and regularly aggregates up to 0.9" (22.4mm) of precipitation.

When it does not snow in Riddle?

In Riddle, Oregon, snow does not fall in April through October.

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

In September, the average length of the day in Riddle is 12.5h.
Average temperature in September - Riddle, OR
  • Average high temperature in September: 79.6°F

The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (48.6°F).

  • Average low temperature in September: 46.4°F

The month with the highest average low temperature is July (52.1°F).
The coldest month (with the lowest average low temperature) is January (34.4°F).

Average rainfall in September - Riddle, OR
  • Average rainfall in September: 0.9"

The wettest month (with the highest rainfall) is December (5.5").
The driest month (with the lowest rainfall) is July (0.3").

Average rainfall days in September - Riddle, OR
  • Average rainfall days in September: 4 days

Months with the highest number of rainy days are January and December (16 days).
Months with the lowest number of rainy days are July and August (2 days).

Average snowfall in September - Riddle, OR
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.6").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average daylight in September - Riddle, 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: 9.1h).