August weather forecast
Washington, PA

Weather in August

The last month of the summer, August, is another warm month in Washington, Pennsylvania, with average temperature ranging between min 59.9°F (15.5°C) and max 82°F (27.8°C).

Temperature

In Washington, the average high-temperature is relatively the same as in July - a still moderately hot 82°F (27.8°C). The average low-temperature, in Washington, is 59.9°F (15.5°C).

Heat index

The average heat index is estimated at a hot 88.2°F (31.2°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, pregnancy, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

Months with the lowest humidity are April, July and August, with an average relative humidity of 77%.

Rainfall

In Washington, it is raining for 14.8 days, with typically 1.26" (32mm) of accumulated precipitation. In Washington, Pennsylvania, during the entire year, the rain falls for 143 days and collects up to 14.8" (376mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Washington, the average length of the day is 13.7h.

Sunshine

The month with the most sunshine is August, with an average of 10.2h of sunshine.

UV index

Months with the highest UV index in Washington are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for average individuals.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
[Resources]

FAQ

What is the temperature in August in Washington?

The average high-temperature, in August, is 82°F (27.8°C), while the average low-temperature is 59.9°F (15.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 88.2°F (31.2°C).

What are the least humid months in Washington?

April, July and August, with an average relative humidity of 77%, are the least humid months in Washington.

What is the average humidity in August in Washington?

The average relative humidity in August in Washington is 77%.

How much does it rain in Washington in August?

In Washington, in August, during 14.8 rainfall days, 1.26" (32mm) of precipitation is typically accumulated.

When it does not snow in Washington?

In Washington, Pennsylvania, snow does not fall in June through September.

What is the average length of the day in August in Washington?

The average length of the day in August is 13.7h.

What month has the most sunshine in Washington?

August has the most sunshine of the year in Washington, Pennsylvania, with an average of 10.2h of sunshine.

How many hours of sunshine does Washington have in August?

The average sunshine in August is 10.2h.

What are the months with the highest UV index in Washington?

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

How high is the UV index in August in Washington?

In Washington, Pennsylvania, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV rays.

Average temperature in August
Washington, PA

Average temperature in August - Washington, PA
  • Average high temperature in August: 27.8°C

The warmest month (with the highest average high temperature) is July (28.5°C).
The month with the lowest average high temperature is January (0.9°C).

  • Average low temperature in August: 15.5°C

The month with the highest average low temperature is July (16.6°C).
The coldest month (with the lowest average low temperature) is January (-6.2°C).

[Resources]

Average pressure in August
Washington, PA

Average pressure in August - Washington, PA
  • Average pressure in August: 1015.8mbar

The month with the highest atmospheric pressure is November (1020.5mbar).
The month with the lowest atmospheric pressure is June (1014.2mbar).

[Resources]

Average wind speed in August
Washington, PA

Average wind speed in August - Washington, PA
  • Average wind speed in August: 7.3km/h

The windiest month (with the highest average wind speed) is January (12.5km/h).
The calmest month (with the lowest average wind speed) is August (7.3km/h).

[Resources]

Average humidity in August
Washington, PA

Average humidity in August - Washington, PA
  • Average humidity in August: 77%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).

[Resources]

Average rainfall in August
Washington, PA

Average rainfall in August - Washington, PA
  • Average rainfall in August: 32mm

The wettest month (with the highest rainfall) is July (42mm).
The driest months (with the least rainfall) are January and November (24mm).

[Resources]

Average rainfall days in August
Washington, PA

Average rainfall days in August - Washington, PA
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (7.3 days).

[Resources]

Average snowfall in August
Washington, PA

Average snowfall in August - Washington, PA
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (32mm).
The months with the least snowfall are June, July, August and September (0mm).

[Resources]

Average snowfall days in August
Washington, PA

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

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in August / Average sunshine in August - Washington, PA
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in August: 10.2h

The month with the most sunshine is August (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3h).

[Resources]

Average sunshine days in August
Washington, PA

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

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is May (11.8 days).

[Resources]

Average UV index in August
Washington, PA

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in August
Washington, PA

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

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).

[Resources]

Average visibility in August
Washington, PA

Average visibility in August - Washington, PA
  • Average visibility in August: 8km

The months with the highest visibility are April and November (9km).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (8km).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location