August weather forecast
Great River, NY

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Weather in August

The last month of the summer, August, is also a moderately hot month in Great River, New York, with an average temperature fluctuating between 71.8°F (22.1°C) and 78.1°F (25.6°C).

Temperature

The warmest time of the year is August, with temperatures averaging a high of 78.1°F (25.6°C) and a low of 71.8°F (22.1°C).

Humidity

In Great River, the average relative humidity in August is 74%.

Rainfall

In Great River, New York, in August, during 15.7 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. Throughout the year, there are 155.3 rainfall days, and 34.84" (885mm) of precipitation is accumulated.

Snowfall

April, June through September and November are months without snowfall.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 73.9°F (23.3°C).
Note: For someone sensitive to cold, swimming in 73.9°F (23.3°C) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In August, the average length of the day is 13h and 45min.
On the first day of August, sunrise is at 5:50 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:26 pm EDT.

Sunshine

The average sunshine in August is 10.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Great River, New York. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 6 in August suggests the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

During the warmest month in Great River, August, temperatures average a high of 78.1°F (25.6°C) and a low of 71.8°F (22.1°C).

What is the average August temperature?

The high-temperature in Great River during August is 78.1°F (25.6°C) and the low-temperature is 71.8°F (22.1°C).

What is the average humidity in August?

In August, the average relative humidity is 74%.

How much does it rain in August?

In August, the rain falls for 15.7 days. Throughout August, 3.27" (83mm) of precipitation is accumulated.

When it does not snow?

In Great River, snow does not fall in April, June through September and November.

When is the ocean warmest in Great River?

The month with the warmest seawater is August, with an average ocean temperature of 73.9°F (23.3°C).

What is the ocean temperature in August?

In Great River, the average seawater temperature in August is 73.9°F (23.3°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 73.9°F (23.3°C).

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

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

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:50 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:26 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.7h.

What are the months with the highest UV index?

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

What is the UV index intensity in August?

In Great River, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to 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 River, NY

Average temperature in August - Great River, NY
  • Average high temperature in August: 78.1°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in August: 71.8°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in August
Great River, NY

Average pressure in August - Great River, 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).

Average wind speed in August
Great River, NY

Average wind speed in August - Great River, NY
  • Average wind speed in August: 9mph

The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).

Average humidity in August
Great River, NY

Average humidity in August - Great River, NY
  • Average humidity in August: 74%

The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

Average rainfall in August
Great River, NY

Average rainfall in August - Great River, NY
  • Average rainfall in August: 3.27"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").

Average rainfall days in August
Great River, NY

Average rainfall days in August - Great River, NY
  • Average rainfall days in August: 15.7 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in August
Great River, NY

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

The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").

Average snowfall days in August
Great River, NY

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

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in August
Great River, NY

Average sea temperature in August - Great River, NY
  • Average sea temperature in August: 74°F

The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

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

Average daylight in August / Average sunshine in August - Great River, 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).

Average sunshine days in August
Great River, NY

Average sunshine days in August - Great River, NY
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in August
Great River, NY

Average UV index in August - Great River, 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).

Average cloud cover in August
Great River, NY

Average cloud cover in August - Great River, NY
  • Average cloud cover in August: 27

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in August
Great River, NY

Average visibility in August - Great River, 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).

Great River, New York, USA

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