August weather forecast and climate
Greendell, NJ

August, the last month of the summer, in Greendell, is also a moderately hot month, with average temperature fluctuating between 80.2°F (26.8°C) and 59.9°F (15.5°C).

Temperature

In Greendell, the average high-temperature is essentially the same as in July - a still moderately hot 80.2°F (26.8°C). In Greendell, the average low-temperature is 59.9°F (15.5°C).

Humidity

The average relative humidity is 78%.

Rainfall

In Greendell, New Jersey, it is raining for 15.7 days, with typically 2.44" (62mm) of accumulated precipitation. In Greendell, during the entire year, the rain falls for 161.1 days and collects up to 28.98" (736mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August is 13.7h.

Sunshine

In Greendell, the average sunshine is 9.8h.

UV index

In Greendell, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in August in Greendell?

In August, in Greendell, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 59.9°F (15.5°C).

What is the average humidity in August in Greendell?

In Greendell, New Jersey, the average relative humidity in August is 78%.

How much does it rain in Greendell in August?

In Greendell, New Jersey, in August, during 15.7 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow in Greendell?

In Greendell, New Jersey, snow does not fall in June through September.

How many hours of daylight does Greendell have in August?

In Greendell, New Jersey, the average length of the day in August is 13.7h.

How many hours of sunshine does Greendell have in August?

The average sunshine in August is 9.8h.

How high is the UV index in August in Greendell?

The average daily maximum UV index in August in Greendell is 5. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in August - Greendell, NJ
  • Average high temperature in August: 80.2°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in August: 59.9°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in August - Greendell, NJ
  • Average pressure in August: 29.99"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed in August - Greendell, NJ
  • Average wind speed in August: 4.9mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in August - Greendell, NJ
  • Average humidity in August: 78%

Months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).

Average rainfall in August - Greendell, NJ
  • Average rainfall in August: 2.44"

The wettest month (with the highest rainfall) is July (3.03").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August - Greendell, NJ
  • Average rainfall days in August: 15.7 days

Months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is January (7.5 days).

Average snowfall in August - Greendell, NJ
  • Average snowfall in August: 0"

Months with the highest snowfall are January and February (4.29").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in August - Greendell, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August / Average sunshine in August - Greendell, NJ
  • 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: 9.8h

The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is February (Average sunshine: 4.3h).

Average sunshine days in August - Greendell, NJ
  • Average sunshine days in August: 13 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in August - Greendell, NJ
  • Average UV index in August: 5

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in August - Greendell, NJ
  • Average cloud cover in August: 37

The month with the most cloud cover is February (Cloud cover 52).
Months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in August - Greendell, NJ
  • Average visibility in August: 5mi

The month with the highest visibility is April (6mi).
Months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).