August weather forecast
Old Westbury, NY

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Weather in August

August, the last month of the summer in Old Westbury, is another warm month, with an average temperature fluctuating between 79.2°F (26.2°C) and 71.2°F (21.8°C).

Temperature

With the onset of August, a modest change to a still warm 79.2°F (26.2°C) from July's 80.1°F (26.7°C) is noted in high-temperature. During August, the nighttime temperatures in Old Westbury align closely with the daytime averages, measuring a pleasant 71.2°F (21.8°C).

Humidity

In August, the average relative humidity is 72%.

Rainfall

In Old Westbury, in August, it is raining for 10.8 days, with typically 0.71" (18mm) of accumulated precipitation. In Old Westbury, during the entire year, the rain falls for 103.6 days and collects up to 7.83" (199mm) of precipitation.

Snowfall

In Old Westbury, snow does not fall in April through November.

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of August in Old Westbury, sunrise is at 5:51 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:27 pm EDT.

Sunshine

In August, the average sunshine in Old Westbury is 10.6h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in August transforms into the following instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the average August temperature in Old Westbury?

The high-temperature, in August, in Old Westbury, records 79.2°F (26.2°C), while the low-temperature is 71.2°F (21.8°C).

What is the average humidity in August in Old Westbury?

The average relative humidity in August is 72%.

How many days does it rain in August in Old Westbury?

In Old Westbury, during August, the rain falls for 10.8 days and regularly aggregates up to 0.71" (18mm) of precipitation.

When it does not snow in Old Westbury?

April through November are months without snowfall in Old Westbury, New York.

How many hours of daylight does Old Westbury have in August?

In August, the average day length is 13h and 45min.

When is the sunrise / sunset in August in Old Westbury?

On the first day of August in Old Westbury, sunrise is at 5:51 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:27 pm EDT.

How long on average sun shines in August in Old Westbury?

The average sunshine duration in August in Old Westbury, New York, is 10.6h.

What is the month with the highest UV index in Old Westbury?

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 Old Westbury?

The average daily maximum UV index in August in Old Westbury is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Old Westbury, NY

Average temperature in August - Old Westbury, NY
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in August: 71.2°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

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Average pressure in August
Old Westbury, NY

Average pressure in August - Old Westbury, NY
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
Old Westbury, NY

Average wind speed in August - Old Westbury, NY
  • Average wind speed in August: 8.3mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in August
Old Westbury, NY

Average humidity in August - Old Westbury, NY
  • Average humidity in August: 72%

The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in August
Old Westbury, NY

Average rainfall in August - Old Westbury, NY
  • Average rainfall in August: 0.71"

The wettest month (with the highest rainfall) is July (0.87").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days in August
Old Westbury, NY

Average rainfall days in August - Old Westbury, NY
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is July (11.3 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in August
Old Westbury, NY

Average snowfall in August - Old Westbury, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in August
Old Westbury, NY

Average snowfall days in August - Old Westbury, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Old Westbury, NY

Average daylight in August / Average sunshine in August - Old Westbury, NY
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in August
Old Westbury, NY

Average sunshine days in August - Old Westbury, NY
  • Average sunshine days in August: 17.4 days

The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is July (16.9 days).

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Average UV index in August
Old Westbury, NY

Average UV index in August - Old Westbury, NY
  • 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, March and December (UV index 2).

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Average cloud cover in August
Old Westbury, NY

Average cloud cover in August - Old Westbury, NY
  • Average cloud cover in August: 28

The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in August
Old Westbury, NY

Average visibility in August - Old Westbury, NY
  • 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).

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Old Westbury, New York, USA

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