August weather forecast
Muttontown, NY

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Weather in August

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

Temperature

August's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 79.2°F (26.2°C) from July's 80.1°F (26.7°C). The August nights show a slight decrease to a mean low-temperature of 71.2°F (21.8°C).

Humidity

The average relative humidity in August is 72%.

Rainfall

In Muttontown, in August, during 10.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, in Muttontown, there are 103.6 rainfall days, and 7.83" (199mm) of precipitation is accumulated.

Snowfall

In Muttontown, snow does not fall in April through November.

Daylight

In Muttontown, the average length of the day in August is 13h and 45min.
On the first day of the month, sunrise is at 5:51 am and sunset at 8:09 pm. On the last day of August, sunrise is at 6:20 am and sunset at 7:27 pm EDT.

Sunshine

The average sunshine in August 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 estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A daily high UV index of 6 in August leads to these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

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

What is the average humidity in August?

The average relative humidity in August is 72%.

How much does it rain in August?

In Muttontown, 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 Muttontown, snow does not fall in April through November.

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

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

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:51 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:27 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10.6h.

What is the month with the highest UV index?

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

How high is the UV index in August?

In Muttontown, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Muttontown, NY

Average temperature in August - Muttontown, 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).

Average pressure in August
Muttontown, NY

Average pressure in August - Muttontown, 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
Muttontown, NY

Average wind speed in August - Muttontown, 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).

Average humidity in August
Muttontown, NY

Average humidity in August - Muttontown, 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%).

Average rainfall in August
Muttontown, NY

Average rainfall in August - Muttontown, 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").

Average rainfall days in August
Muttontown, NY

Average rainfall days in August - Muttontown, 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).

Average snowfall in August
Muttontown, NY

Average snowfall in August - Muttontown, 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").

Average snowfall days in August
Muttontown, NY

Average snowfall days in August - Muttontown, 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).

Average daylight in August /
Average sunshine in August
Muttontown, NY

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

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).

Average sunshine days in August
Muttontown, NY

Average sunshine days in August - Muttontown, 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).

Average UV index in August
Muttontown, NY

Average UV index in August - Muttontown, 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
Muttontown, NY

Average cloud cover in August - Muttontown, 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).

Average visibility in August
Muttontown, NY

Average visibility in August - Muttontown, 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).

Muttontown, New York, USA

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