Omak
Washington, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Omak, WA

September, the first month of the autumn, in Omak, is also a moderately hot month, with average temperature fluctuating between 45.3°F (7.4°C) and 77.2°F (25.1°C).

Temperature

In September, the average high-temperature drops, from a tropical 87.1°F (30.6°C) in August, to a warm 77.2°F (25.1°C). In Omak, Washington, in September, the average low-temperature is 45.3°F (7.4°C).

Rainfall

In Omak, during September, the rain falls for 4 days and regularly aggregates up to 0.6" (14.2mm) of precipitation. Throughout the year, there are 67 rainfall days, and 11.9" (301.2mm) of precipitation is accumulated.

Snowfall

Throughout the year, 22.2" (563.9mm) of snow is accumulated.

Daylight

The average length of the day in September in Omak, Washington, is 12.6h.

What is the temperature in September in Omak?

In Omak, Washington, in September, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 45.3°F (7.4°C).

How many days does it rain in September in Omak?

In Omak, Washington, in September, during 4 rainfall days, 0.6" (14.2mm) of precipitation is typically accumulated.

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

In September, the average length of the day is 12.6h.
Average temperature in September - Omak, WA
  • Average high temperature in September: 77.1°F

The warmest month (with the highest average high temperature) is July (88.8°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in September: 45.3°F

The month with the highest average low temperature is July (55.6°F).
The coldest month (with the lowest average low temperature) is January (16.6°F).

Average rainfall in September - Omak, WA
  • Average rainfall in September: 0.6"

The wettest month (with the highest rainfall) is December (1.7").
The driest month (with the lowest rainfall) is August (0.5").

Average rainfall days in September - Omak, WA
  • Average rainfall days in September: 4 days

The month with the highest number of rainy days is December (9 days).
Months with the lowest number of rainy days are July and August (3 days).

Average snowfall in September - Omak, WA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (7.7").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average daylight in September - Omak, WA
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16h).
The month with shortest days is December (Average daylight: 8.4h).