September weather forecast
Bound Brook, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bound Brook, New Jersey, with an average temperature ranging between max 75.4°F (24.1°C) and min 58.5°F (14.7°C).

Temperature

September's onset introduces a mild reduction in the average high-temperature, from a warm 82.6°F (28.1°C) in August to a still moderately hot 75.4°F (24.1°C). In September, Bound Brook records an average nighttime temperature of 58.5°F (14.7°C).

Humidity

In Bound Brook, the average relative humidity in September is 76%.

Rainfall

September is the month with the least rainfall in Bound Brook, New Jersey. Rain falls for 12 days and accumulates 1.57" (40mm) of precipitation.

Snowfall

In Bound Brook, snow does not fall in June through September.

Daylight

In Bound Brook, the average length of the day in September is 12h and 27min.
On the first day of September in Bound Brook, 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 Bound Brook, New Jersey, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Bound Brook in September?

An average high-temperature, in September, in Bound Brook, is 75.4°F (24.1°C) and the average low-temperature is 58.5°F (14.7°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in September in Bound Brook?

In Bound Brook, New Jersey, the average relative humidity in September is 76%.

What is the driest month in Bound Brook?

September is the month with the least rainfall in Bound Brook. Rain falls for 12 days and accumulates 1.57" (40mm) of precipitation.

How much does it rain in Bound Brook in September?

In Bound Brook, New Jersey, in September, it is raining for 12 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Bound Brook?

In Bound Brook, snow does not fall in June through September.

Does it snow in Bound Brook in September?

In Bound Brook, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Bound Brook have in September?

The average day length in September in Bound Brook is 12h and 27min.

When is the sunrise / sunset in September in Bound Brook?

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 Bound Brook, New Jersey, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How many hours of sunshine does Bound Brook have in September?

In September, the average sunshine duration is 8.5h.

What is the UV index intensity in September in Bound Brook?

The average daily maximum UV index in September in Bound Brook is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Bound Brook, NJ

Average temperature in September - Bound Brook, NJ
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in September
Bound Brook, NJ

Average pressure in September - Bound Brook, NJ
  • Average pressure in September: 30.06"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
Bound Brook, NJ

Average wind speed in September - Bound Brook, NJ
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Bound Brook, NJ

Average humidity in September - Bound Brook, NJ
  • Average humidity in September: 76%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are April and August (73%).

Average rainfall in September
Bound Brook, NJ

Average rainfall in September - Bound Brook, NJ
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in September
Bound Brook, NJ

Average rainfall days in September - Bound Brook, NJ
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in September
Bound Brook, NJ

Average snowfall in September - Bound Brook, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Bound Brook, NJ

Average snowfall days in September - Bound Brook, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Bound Brook, NJ

Average daylight in September / Average sunshine in September - Bound Brook, NJ
  • Average daylight in September: 12h and 3min

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 18min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Bound Brook, NJ

Average sunshine days in September - Bound Brook, NJ
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.6 days).

Average UV index in September
Bound Brook, NJ

Average UV index in September - Bound Brook, NJ
  • Average UV index in September: 4

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

Average cloud cover in September
Bound Brook, NJ

Average cloud cover in September - Bound Brook, NJ
  • Average cloud cover in September: 40

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
Bound Brook, NJ

Average visibility in September - Bound Brook, NJ
  • Average visibility in September: 5mi

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

Bound Brook, New Jersey, USA

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