August weather forecast
Washington, NJ

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Weather in August

The last month of the summer, August, is also a moderately hot month in Washington, New Jersey, with an average temperature ranging between max 81.1°F (27.3°C) and min 61.3°F (16.3°C).

Temperature

Washington records a slight change with August's average high-temperatures adjusting to a still moderately hot 81.1°F (27.3°C) from July's 83.7°F (28.7°C). During the month of August, the nighttime temperature falls to an average of 61.3°F (16.3°C).

Heat index

August's mean heat index is evaluated at a tropical 86°F (30°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.

Humidity

In August, the average relative humidity in Washington is 78%.

Rainfall

In Washington, in August, it is raining for 15.2 days, with typically 2.36" (60mm) of accumulated precipitation. In Washington, during the entire year, the rain falls for 157.6 days and collects up to 28.7" (729mm) of precipitation.

Snowfall

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

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of August, sunrise is at 5:57 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 7:33 pm EDT.

Sunshine

In Washington, the average sunshine in August is 9.9h.

UV index

In Washington, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - It is advised to guard against sun damage. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the usual temperature for Washington in August?

During August, Washington experiences an average high-temperature of 81.1°F (27.3°C) and a low-temperature of 61.3°F (16.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 86°F (30°C).

What is the average humidity in August in Washington?

In August, the average relative humidity in Washington is 78%.

How many days does it rain in August in Washington?

In Washington, during August, the rain falls for 15.2 days and regularly aggregates up to 2.36" (60mm) of precipitation.

When it does not snow in Washington?

June through September are months without snowfall in Washington.

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

The average day length in August in Washington is 13h and 45min.

What time are sunrise and sunset in August in Washington?

In August, on the first day of the month, sunrise is at 5:57 am and sunset at 8:15 pm. On the last day of the month, in Washington, New Jersey, sunrise is at 6:26 am and sunset at 7:33 pm EDT.

How many hours of sunshine does Washington have in August?

In Washington, New Jersey, the average sunshine duration in August is 9.9h.

How high is the UV index in August in Washington?

In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from 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
Washington, NJ

Average temperature in August - Washington, NJ
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).

  • Average low temperature in August: 61.3°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in August
Washington, NJ

Average pressure in August - Washington, NJ
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Washington, NJ

Average wind speed in August - Washington, NJ
  • Average wind speed in August: 4.8mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in August
Washington, NJ

Average humidity in August - Washington, NJ
  • Average humidity in August: 78%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in August
Washington, NJ

Average rainfall in August - Washington, NJ
  • Average rainfall in August: 2.36"

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in August
Washington, NJ

Average rainfall days in August - Washington, NJ
  • Average rainfall days in August: 15.2 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in August
Washington, NJ

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

The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Washington, NJ

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

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in August
Washington, NJ

Average sunshine days in August - Washington, NJ
  • Average sunshine days in August: 13.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (11.8 days).

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Average UV index in August
Washington, NJ

Average UV index in August - Washington, NJ
  • Average UV index in August: 5

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

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Average cloud cover in August
Washington, NJ

Average cloud cover in August - Washington, NJ
  • Average cloud cover in August: 36

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in August
Washington, NJ

Average visibility in August - Washington, NJ
  • 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).

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Washington, New Jersey, USA

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