September weather forecast
Rossmoor, NJ

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Weather in September

September, the first month of the autumn in Rossmoor, is also a moderately hot month, with temperature in the range of an average low of 60.6°F (15.9°C) and an average high of 75.7°F (24.3°C).

Temperature

With the arrival of September, Rossmoor experiences a modest decline in average high-temperatures, transitioning from a moderately hot 82.4°F (28°C) in August to a still warm 75.7°F (24.3°C). An average low-temperature of 60.6°F (15.9°C) is noted during the month of September.

Humidity

In September, the average relative humidity in Rossmoor, New Jersey, is 75%.

Rainfall

The month with the least rainfall in Rossmoor is September, when the rain falls for 7.5 days and typically collects 0.28" (7mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

Sunshine

In September, the average sunshine in Rossmoor, New Jersey, is 8.7h.

UV index

In September, the average daily maximum UV index in Rossmoor is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What is the temperature in September in Rossmoor?

The high-temperature, in September, in Rossmoor, is 75.7°F (24.3°C), while the low-temperature averages to 60.6°F (15.9°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Rossmoor?

In Rossmoor, the average relative humidity in September is 75%.

What is the driest month in Rossmoor?

September is the month with the least rainfall in Rossmoor. Rain falls for 7.5 days and accumulates 0.28" (7mm) of precipitation.

How much does it rain in Rossmoor in September?

In Rossmoor, New Jersey, in September, during 7.5 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

When it does not snow in Rossmoor?

In Rossmoor, New Jersey, snow does not fall in April through October.

What is the average length of the day in September in Rossmoor?

In September, the average day length in Rossmoor, New Jersey, is 12h and 27min.

When are sunrise and sunset in September in Rossmoor?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of the month, in Rossmoor, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How many hours of sunshine does Rossmoor have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index intensity in September in Rossmoor?

The average daily maximum UV index in September in Rossmoor, New Jersey, is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
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 September
Rossmoor, NJ

Average temperature in September - Rossmoor, NJ
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in September: 60.6°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in September
Rossmoor, NJ

Average pressure in September - Rossmoor, NJ
  • Average pressure in September: 30.05"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).

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Average wind speed in September
Rossmoor, NJ

Average wind speed in September - Rossmoor, NJ
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in September
Rossmoor, NJ

Average humidity in September - Rossmoor, NJ
  • Average humidity in September: 75%

The months with the highest relative humidity are February, May, October and December (77%).
The months with the lowest relative humidity are April and August (73%).

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Average rainfall in September
Rossmoor, NJ

Average rainfall in September - Rossmoor, NJ
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is July (0.94").
The driest month (with the least rainfall) is September (0.28").

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Average rainfall days in September
Rossmoor, NJ

Average rainfall days in September - Rossmoor, NJ
  • Average rainfall days in September: 7.5 days

The month with the highest number of rainy days is July (10.7 days).
The months with the least rainy days are January and November (4.8 days).

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Average snowfall in September
Rossmoor, NJ

Average snowfall in September - Rossmoor, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Rossmoor, NJ

Average snowfall days in September - Rossmoor, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Rossmoor, NJ

Average daylight in September / Average sunshine in September - Rossmoor, NJ
  • Average daylight in September: 12h and 2min

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 24min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in September
Rossmoor, NJ

Average sunshine days in September - Rossmoor, NJ
  • Average sunshine days in September: 20.5 days

The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (15.7 days).

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Average UV index in September
Rossmoor, NJ

Average UV index in September - Rossmoor, NJ
  • Average UV index in September: 5

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

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Average cloud cover in September
Rossmoor, NJ

Average cloud cover in September - Rossmoor, NJ
  • Average cloud cover in September: 37

The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in September
Rossmoor, NJ

Average visibility in September - Rossmoor, NJ
  • Average visibility in September: 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).

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Rossmoor, New Jersey, USA

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