Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
With August's arrival, Richland's weather records an average high-temperature of a still hot 89.4°F (31.9°C), marking little difference from July's 90.1°F (32.3°C). From the height of daytime heat, the temperature in Richland recedes to an average of 64.2°F (17.9°C) at night during August.Humidity
In Richland, the average relative humidity in August is 36%.Rainfall
In Richland, in August, during 4.3 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. In 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 August, the average length of the day is 14h and 7min.On the first day of August, sunrise is at 5:39 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
In August, the average sunshine 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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 6 in August suggests the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow in Richland?
How many hours of daylight does Richland have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Richland have in August?
What is the UV index intensity in August in Richland?
Average temperature in August
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
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
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
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
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
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
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
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
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
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
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
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
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).
Richland, Washington, USA
Weather forecast for your location
2. Allow the app to use your location