August weather forecast
South Valley Stream, NY

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Weather in August

The last month of the summer, August, is another warm month in South Valley Stream, New York, with an average temperature ranging between min 71.1°F (21.7°C) and max 79.9°F (26.6°C).

Temperature

South Valley Stream's average high-temperature in August sits at a still moderately hot 79.9°F (26.6°C), showing little difference from the previous month. South Valley Stream, in August, registers a nighttime average temperature of 71.1°F (21.7°C).

Humidity

The average relative humidity in August in South Valley Stream is 73%.

Rainfall

The months with the most rainfall are July and August, with an average 2.32" (59mm) of precipitation.

Snowfall

In South Valley Stream, snow does not fall in April through September.

Daylight

In August, the average length of the day is 13h and 44min.
On the first day of the month, sunrise is at 5:52 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:28 pm EDT.

Sunshine

In South Valley Stream, the average sunshine in August is 10.6h.

UV index

The months with the highest UV index in South Valley Stream are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the usual temperature for South Valley Stream in August?

An average high-temperature, in August, in South Valley Stream, is 79.9°F (26.6°C) and the average low-temperature is 71.1°F (21.7°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in July is appraised at 84.2°F (29°C).

What is the average humidity in August in South Valley Stream?

In August, the average relative humidity in South Valley Stream is 73%.

What is the wettest month in South Valley Stream?

The months with the most rainfall in South Valley Stream, New York, are July and August, with an average 2.32" (59mm) of precipitation.

How much does it rain in South Valley Stream in August?

In August, in South Valley Stream, the rain falls for 13.6 days. Throughout August, 2.32" (59mm) of precipitation is accumulated.

When it does not snow in South Valley Stream?

April through September are months without snowfall in South Valley Stream, New York.

What is the average length of the day in August in South Valley Stream?

The average day length in August in South Valley Stream, New York, is 13h and 44min.

What time are sunrise and sunset in August in South Valley Stream?

In August, on the first day of the month, sunrise is at 5:52 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:28 pm EDT.

How many hours of sunshine does South Valley Stream have in August?

In South Valley Stream, the average sunshine duration in August is 10.6h.

When is the highest UV index in South Valley Stream?

The months with the highest UV index in South Valley Stream, New York, are June through August, with an average maximum UV index of 6.

What is the UV index reading in August in South Valley Stream?

The average daily maximum UV index in August in South Valley Stream, New York, is 6. A UV Index reading of 6 to 7 represents a high 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
South Valley Stream, NY

Average temperature in August - South Valley Stream, NY
  • Average high temperature in August: 79.9°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in August: 71.1°F

The month with the highest average low temperature is August (71.1°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

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Average pressure in August
South Valley Stream, NY

Average pressure in August - South Valley Stream, NY
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in August
South Valley Stream, NY

Average wind speed in August - South Valley Stream, NY
  • Average wind speed in August: 8.2mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).

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Average humidity in August
South Valley Stream, NY

Average humidity in August - South Valley Stream, NY
  • Average humidity in August: 73%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (72%).

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Average rainfall in August
South Valley Stream, NY

Average rainfall in August - South Valley Stream, NY
  • Average rainfall in August: 2.32"

The wettest months (with the highest rainfall) are July and August (2.32").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days in August
South Valley Stream, NY

Average rainfall days in August - South Valley Stream, NY
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in August
South Valley Stream, NY

Average snowfall in August - South Valley Stream, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (1.02").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in August
South Valley Stream, NY

Average snowfall days in August - South Valley Stream, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.6 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
South Valley Stream, NY

Average daylight in August / Average sunshine in August - South Valley Stream, NY
  • 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: 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 48min).

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Average sunshine days in August
South Valley Stream, NY

Average sunshine days in August - South Valley Stream, NY
  • Average sunshine days in August: 15.4 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (13.6 days).

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Average UV index in August
South Valley Stream, NY

Average UV index in August - South Valley Stream, 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, November and December (UV index 2).

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Average cloud cover in August
South Valley Stream, NY

Average cloud cover in August - South Valley Stream, NY
  • Average cloud cover in August: 27

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in August
South Valley Stream, NY

Average visibility in August - South Valley Stream, 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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South Valley Stream, New York, USA

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