August weather forecast
West Richland, WA

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Weather in August

August, the last month of the summer in West Richland, is also a hot month, with temperature in the range of an average high of 89.4°F (31.9°C) and an average low of 64.2°F (17.9°C).

Temperature

As August unfolds, the average high-temperature reaches a still tropical 89.4°F (31.9°C), hinting at a slight fluctuation from the previous month. August nights are characterized by a notable drop from daytime highs, with an average low-temperature of 64.2°F (17.9°C).

Humidity

In August, the average relative humidity is 36%.

Rainfall

In West Richland, during August, the rain falls for 4.3 days and regularly aggregates up to 0.28" (7mm) of precipitation. In West Richland, Washington, 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 West Richland, the average length of the day in August is 14h and 7min.
On the first day of August, sunrise is at 5:40 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:37 pm PDT.

Sunshine

The average sunshine in August is 12h.

UV index

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during August translates into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

In August, the average high-temperature and low-temperature are 89.4°F (31.9°C) and 64.2°F (17.9°C) respectively.

What is the average humidity in August?

In West Richland, the average relative humidity in August is 36%.

How many days does it rain in August?

In West Richland, during August, the rain falls for 4.3 days and regularly aggregates up to 0.28" (7mm) of precipitation.

When it does not snow in West Richland?

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

What is the average length of the day in August?

In West Richland, the average day length in August is 14h and 7min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:40 am and sunset at 8:27 pm. On the last day of the month, in West Richland, sunrise is at 6:17 am and sunset at 7:37 pm PDT.

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

In West Richland, the average sunshine duration in August is 12h.

What is the UV index reading in August?

The average daily maximum UV index in August in West Richland is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
West Richland, WA

Average temperature in August - West Richland, WA
  • Average high temperature in August: 89.4°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 August: 64.2°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 pressure in August
West Richland, WA

Average pressure in August - West Richland, WA
  • Average pressure in August: 29.91"Hg

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed in August
West Richland, WA

Average wind speed in August - West Richland, WA
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).

Average humidity in August
West Richland, WA

Average humidity in August - West Richland, WA
  • Average humidity in August: 36%

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

Average rainfall in August
West Richland, WA

Average rainfall in August - West Richland, WA
  • Average rainfall in August: 0.28"

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 August
West Richland, WA

Average rainfall days in August - West Richland, WA
  • Average rainfall days in August: 4.3 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 August
West Richland, WA

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

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

Average snowfall days in August
West Richland, WA

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

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

Average daylight in August /
Average sunshine in August
West Richland, WA

Average daylight in August / Average sunshine in August - West Richland, WA
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

Average sunshine days in August
West Richland, WA

Average sunshine days in August - West Richland, WA
  • Average sunshine days in August: 24.1 days

The month with the most sunshine days is July (25.7 days).
The months with the least sunshine days are February and March (15.3 days).

Average UV index in August
West Richland, WA

Average UV index in August - West Richland, WA
  • Average UV index in August: 6

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

Average cloud cover in August
West Richland, WA

Average cloud cover in August - West Richland, WA
  • Average cloud cover in August: 10

The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 9).

Average visibility in August
West Richland, WA

Average visibility in August - West Richland, WA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

West Richland, Washington, USA

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