September weather forecast
Mount Laurel, NJ

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Weather in September

September, the first month of the autumn in Mount Laurel, is also a moderately hot month, with temperature in the range of an average high of 76.5°F (24.7°C) and an average low of 60.8°F (16°C).

Temperature

Mount Laurel's weather subtly changes with the onset of September, barely falling from a moderately hot 83.8°F (28.8°C) in August to a still warm 76.5°F (24.7°C). During the nights in September, Mount Laurel experiences a consistent average temperature of 60.8°F (16°C).

Humidity

In Mount Laurel, New Jersey, the average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 9.9 days. Throughout September, 0.71" (18mm) of precipitation is accumulated. In Mount Laurel, during the entire year, the rain falls for 120.1 days and collects up to 11.81" (300mm) of precipitation.

Snowfall

In Mount Laurel, snow does not fall in April through October.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

In Mount Laurel, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Mount Laurel in September?

In September, in Mount Laurel, the average high-temperature is 76.5°F (24.7°C), and the average low-temperature is 60.8°F (16°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in August is appraised at 91.4°F (33°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How much does it rain in September?

In Mount Laurel, in September, it is raining for 9.9 days, with typically 0.71" (18mm) of accumulated precipitation.

When it does not snow in Mount Laurel?

In Mount Laurel, snow does not fall in April through October.

How many hours of daylight does Mount Laurel have in September?

In September, the average day length is 12h and 26min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:28 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

How long on average sun shines in September?

In Mount Laurel, the average sunshine duration in September is 8.8h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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 September
Mount Laurel, NJ

Average temperature in September - Mount Laurel, NJ
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in September: 60.8°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in September
Mount Laurel, NJ

Average pressure in September - Mount Laurel, 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).

Average wind speed in September
Mount Laurel, NJ

Average wind speed in September - Mount Laurel, NJ
  • Average wind speed in September: 6.2mph

The windiest months (with the highest average wind speed) are March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Mount Laurel, NJ

Average humidity in September - Mount Laurel, NJ
  • Average humidity in September: 76%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September
Mount Laurel, NJ

Average rainfall in September - Mount Laurel, NJ
  • Average rainfall in September: 0.71"

The wettest months (with the highest rainfall) are July and August (1.42").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days in September
Mount Laurel, NJ

Average rainfall days in September - Mount Laurel, NJ
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in September
Mount Laurel, NJ

Average snowfall in September - Mount Laurel, NJ
  • Average snowfall in September: 0"

The months with the highest snowfall are February and March (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Mount Laurel, NJ

Average snowfall days in September - Mount Laurel, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Mount Laurel, NJ

Average daylight in September / Average sunshine in September - Mount Laurel, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in September
Mount Laurel, NJ

Average sunshine days in September - Mount Laurel, NJ
  • Average sunshine days in September: 17 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13 days).

Average UV index in September
Mount Laurel, NJ

Average UV index in September - Mount Laurel, 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, November and December (UV index 2).

Average cloud cover in September
Mount Laurel, NJ

Average cloud cover in September - Mount Laurel, NJ
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Mount Laurel, NJ

Average visibility in September - Mount Laurel, 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).

Mount Laurel, New Jersey, USA

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