August weather forecast
Washington, WV

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Weather in August

The last month of the summer, August, is also a moderately hot month in Washington, West Virginia, with an average temperature varying between 84.2°F (29°C) and 61.5°F (16.4°C).

Temperature

As July turns into August, the average high-temperatures rest at a still warm 84.2°F (29°C), showing a minor variation from the prior month. Washington encounters a substantial decline from its daily high to a low-temperature of 61.5°F (16.4°C) during August nights.

Heat index

The heat index for August is computed to be a tropical 93.2°F (34°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

With an average relative humidity of 75%, August is the least humid month.

Rainfall

In August, the rain falls for 14.9 days. Throughout August, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 175.1 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 40min.
On the first day of the month, sunrise is at 6:27 am and sunset at 8:38 pm. On the last day of August, sunrise is at 6:55 am and sunset at 7:58 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.3h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 6 in August translates into this advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in August?

During August, Washington experiences an average high-temperature of 84.2°F (29°C) and a low-temperature of 61.5°F (16.4°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in August is computed to be 93.2°F (34°C).

What is the least humid month?

August is the least humid month, with an average relative humidity of 75%.

What is the average humidity in August?

The average relative humidity in August is 75%.

How many days does it rain in August?

In Washington, during August, the rain falls for 14.9 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

In Washington, snow does not fall in May through September.

How many hours of daylight does Washington have in August?

The average day length in August is 13h and 40min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:27 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 7:58 pm EDT.

What month has the most sunshine?

With an average of 10.3h of sunshine, August has the most sunshine of the year.

How many hours of sunshine does Washington have in August?

In August, the average sunshine duration is 10.3h.

What are the months with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in August in Washington?

In Washington, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
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
Washington, WV

Average temperature in August - Washington, WV
  • Average high temperature in August: 84.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in August: 61.5°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in August
Washington, WV

Average pressure in August - Washington, WV
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in August
Washington, WV

Average wind speed in August - Washington, WV
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in August
Washington, WV

Average humidity in August - Washington, WV
  • Average humidity in August: 75%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (75%).

Average rainfall in August
Washington, WV

Average rainfall in August - Washington, WV
  • Average rainfall in August: 2.05"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in August
Washington, WV

Average rainfall days in August - Washington, WV
  • Average rainfall days in August: 14.9 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in August
Washington, WV

Average snowfall in August - Washington, WV
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Washington, WV

Average snowfall days in August - Washington, WV
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Washington, WV

Average daylight in August / Average sunshine in August - Washington, WV
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in August
Washington, WV

Average sunshine days in August - Washington, WV
  • Average sunshine days in August: 13.9 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is February (9.2 days).

Average UV index in August
Washington, WV

Average UV index in August - Washington, WV
  • Average UV index in August: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in August
Washington, WV

Average cloud cover in August - Washington, WV
  • Average cloud cover in August: 33

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Washington, WV

Average visibility in August - Washington, WV
  • Average visibility in August: 5mi

The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).

Washington, West Virginia, USA

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