August weather forecast
Great Valley, NY

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Weather in August

August, the last month of the summer in Great Valley, is another warm month, with an average temperature ranging between min 55.2°F (12.9°C) and max 76.3°F (24.6°C).

Temperature

In August, Great Valley experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 77.5°F (25.3°C) in July to a still warm 76.3°F (24.6°C). Great Valley, in the month of August, anticipates a consistent average low-temperature of 55.2°F (12.9°C).

Humidity

The average relative humidity in August is 81%.

Rainfall

In Great Valley, New York, in August, during 16 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 159.5 rainfall days, and 28.03" (712mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day in Great Valley is 13h and 50min.
On the first day of the month, sunrise is at 6:08 am and sunset at 8:33 pm. On the last day of August, in Great Valley, New York, sunrise is at 6:39 am and sunset at 7:49 pm EDT.

Sunshine

July and August, with an average of 9.7h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index in Great Valley, New York, are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 5 during August leads to these advisories:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Great Valley in August?

The average high-temperature, in August, in Great Valley, is 76.3°F (24.6°C), while the average low-temperature is 55.2°F (12.9°C).

What is the average humidity in August in Great Valley?

In August, the average relative humidity is 81%.

How many days does it rain in August in Great Valley?

In Great Valley, in August, it is raining for 16 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Great Valley?

In Great Valley, snow does not fall in June through September.

How many hours of daylight does Great Valley have in August?

In Great Valley, the average day length in August is 13h and 50min.

When is the sunrise / sunset in August in Great Valley?

In August, on the first day of the month, sunrise is at 6:08 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 7:49 pm EDT.

What is the month with the most sunshine in Great Valley?

The months with the most sunshine are July and August, with an average of 9.7h of sunshine.

How long on average sun shines in August in Great Valley?

In Great Valley, the average sunshine duration in August is 9.7h.

What is the month with the highest UV index in Great Valley?

The months with the highest UV index in Great Valley, New York, are June through August, with an average maximum UV index of 5.

What is the UV index reading in August in Great Valley?

The average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Great Valley, NY

Average temperature in August - Great Valley, NY
  • Average high temperature in August: 76.3°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in August: 55.2°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure in August
Great Valley, NY

Average pressure in August - Great Valley, NY
  • 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).

Average wind speed in August
Great Valley, NY

Average wind speed in August - Great Valley, NY
  • Average wind speed in August: 5.9mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in August
Great Valley, NY

Average humidity in August - Great Valley, NY
  • Average humidity in August: 81%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (79%).

Average rainfall in August
Great Valley, NY

Average rainfall in August - Great Valley, NY
  • Average rainfall in August: 2.24"

The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in August
Great Valley, NY

Average rainfall days in August - Great Valley, NY
  • Average rainfall days in August: 16 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in August
Great Valley, NY

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

The month with the highest snowfall is February (8.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Great Valley, NY

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

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Great Valley, NY

Average daylight in August / Average sunshine in August - Great Valley, NY
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 9h and 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in August
Great Valley, NY

Average sunshine days in August - Great Valley, NY
  • Average sunshine days in August: 11.5 days

The month with the most sunshine days is September (13.3 days).
The month with the least sunshine days is January (8.3 days).

Average UV index in August
Great Valley, NY

Average UV index in August - Great Valley, NY
  • Average UV index in August: 5

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in August
Great Valley, NY

Average cloud cover in August - Great Valley, NY
  • Average cloud cover in August: 39

The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 39).

Average visibility in August
Great Valley, NY

Average visibility in August - Great Valley, NY
  • Average visibility in August: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

Great Valley, New York, USA

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