August weather forecast and climate
Commack, NY

August, the last month of the summer, in Commack, is also a moderately hot month, with average temperature varying between 78.6°F (25.9°C) and 71.6°F (22°C).

Temperature

In Commack, the average high-temperature in August is almost the same as in July - a still moderately hot 78.6°F (25.9°C). The average low-temperature, in Commack, is 71.6°F (22°C).

Humidity

In Commack, the average relative humidity is 72%.

Rainfall

In Commack, during August, the rain falls for 16.3 days and regularly aggregates up to 3.46" (88mm) of precipitation. In Commack, during the entire year, the rain falls for 155.9 days and collects up to 35.94" (913mm) of precipitation.

Snowfall

April through October are months without snowfall in Commack.

Daylight

In August, the average length of the day in Commack is 13.7h.

Sunshine

In August, the average sunshine in Commack is 10.7h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Commack, New York. A UV Index estimate of 6 to 7 represents a high threat to health from the exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Commack?

The average high-temperature, in August, is 78.6°F (25.9°C), while the average low-temperature is 71.6°F (22°C).

What is the average humidity in August in Commack?

In August, the average relative humidity in Commack, New York, is 72%.

How many days does it rain in August in Commack?

In August, the rain falls for 16.3 days. Throughout August, 3.46" (88mm) of precipitation is accumulated.

When it does not snow in Commack?

In Commack, New York, snow does not fall in April through October.

How many hours of daylight does Commack have in August?

In Commack, the average length of the day in August is 13.7h.

How long on average sun shines in August in Commack?

In August, the average sunshine is 10.7h.

When is the highest UV index in Commack?

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

How high is the UV index in August in Commack?

In Commack, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV radiation.
Average temperature in August - Commack, NY
  • Average high temperature in August: 78.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in August: 71.6°F

The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

Average pressure in August - Commack, NY
  • Average pressure in August: 29.98"

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

Average wind speed in August - Commack, NY
  • Average wind speed in August: 8.4mph

The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

Average humidity in August - Commack, NY
  • Average humidity in August: 72%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).

Average rainfall in August - Commack, NY
  • Average rainfall in August: 3.46"

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is January (2.2").

Average rainfall days in August - Commack, NY
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in August - Commack, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (1.85").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August - Commack, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (4.8 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Commack, NY
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in August: 10.7h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in August - Commack, NY
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (11.4 days).

Average UV index in August - Commack, NY
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March and December (UV index 2).

Average cloud cover in August - Commack, NY
  • Average cloud cover in August: 28

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

Average visibility in August - Commack, NY
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).