West Richland
Washington, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
West Richland, WA

October, the same as September, is another enjoyable autumn month in West Richland, Washington, with average temperature varying between 62.4°F (16.9°C) and 46.6°F (8.1°C).

Temperature

In October, the average high-temperature declines considerably, from a moderately hot 78.6°F (25.9°C) in September, to an enjoyable 62.4°F (16.9°C). The average low-temperature, in West Richland, is 46.6°F (8.1°C).

Humidity

In October, the average relative humidity in West Richland is 57%.

Rainfall

In October, the rain falls for 10 days. Throughout October, 0.63" (16mm) of precipitation is accumulated. In West Richland, during the entire year, the rain falls for 100.2 days and collects up to 7.05" (179mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In October, the average length of the day in West Richland, Washington, is 10.9h.

Sunshine

In October, the average sunshine in West Richland, Washington, is 6.9h.

UV index

In West Richland, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in October in West Richland?

In West Richland, Washington, in October, the average high-temperature is 62.4°F (16.9°C), and the average low-temperature is 46.6°F (8.1°C).

What is the average humidity in October in West Richland?

In October, the average relative humidity is 57%.

How many days does it rain in October in West Richland?

In West Richland, during October, the rain falls for 10 days and regularly aggregates up to 0.63" (16mm) of precipitation.

Does it snow in West Richland in October?

In West Richland, Washington, in October, it doesn't snow. In November, it regularly snows.

When it does not snow in West Richland?

In West Richland, Washington, snow does not fall in April through October.

How many hours of daylight does West Richland have in October?

The average length of the day in October in West Richland is 10.9h.

How many hours of sunshine does West Richland have in October?

The average sunshine in October in West Richland, Washington, is 6.9h.

What is the UV index reading in October in West Richland?

In West Richland, Washington, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in October - West Richland, WA
  • Average high temperature in October: 62.4°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (38.1°F).

  • Average low temperature in October: 46.6°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (27.5°F).

Average humidity in October - West Richland, WA
  • Average humidity in October: 57%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is July (35%).

Average rainfall in October - West Richland, WA
  • Average rainfall in October: 0.63"

The wettest month (with the highest rainfall) is December (0.94").
The driest months (with the least rainfall) are July and September (0.2").

Average rainfall days in October - West Richland, WA
  • Average rainfall days in October: 10 days

The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is July (3.5 days).

Average snowfall in October - West Richland, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.2").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in October - West Richland, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is December (3.3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in October / Average sunshine in October - West Richland, WA
  • Average daylight in October: 10.9h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in October: 6.9h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 5.4h).

Average UV index in October - West Richland, WA
  • Average UV index in October: 4

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).