September weather forecast
Mount Laurel, NJ

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Weather in September

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

Temperature

Mount Laurel experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a warm 83.8°F (28.8°C) in August to a still moderately hot 76.5°F (24.7°C). In Mount Laurel, September nights witness a steady temperature drop to an enjoyable 60.8°F (16°C).

Humidity

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

Rainfall

In Mount Laurel, New Jersey, in September, during 9.9 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, in Mount Laurel, there are 120.1 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September in Mount Laurel, New Jersey, 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.

Sunshine

The average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 translates into these guidelines:
Take precautions - Protection against sunburn is recommended. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What is the average September temperature in Mount Laurel?

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

What is the average humidity in September in Mount Laurel?

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

How many days does it rain in September in Mount Laurel?

In Mount Laurel, in September, during 9.9 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

When it does not snow in Mount Laurel?

April through October are months without snowfall in Mount Laurel, New Jersey.

What is the average length of the day in September in Mount Laurel?

The average day length in September in Mount Laurel is 12h and 26min.

When are sunrise and sunset in September in Mount Laurel?

On the first day of September in Mount Laurel, New Jersey, 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?

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

What is the UV index intensity in September in Mount Laurel?

In Mount Laurel, New Jersey, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to 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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Mount Laurel, New Jersey, USA

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