September weather forecast
Pine Brook, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Pine Brook, New Jersey, with an average temperature ranging between max 74.7°F (23.7°C) and min 58.1°F (14.5°C).

Temperature

As August transitions into September, Pine Brook sees a gentle drop in the average high-temperature, transitioning from 82°F (27.8°C) to a still moderately hot 74.7°F (23.7°C). An average temperature of 58.1°F (14.5°C) marks the nights in September.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Pine Brook, New Jersey, in September, it is raining for 13.5 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, there are 158 rainfall days, and 27.4" (696mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Pine Brook.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 6:24 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:40 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What are the temperatures in September?

In Pine Brook, 74.7°F (23.7°C) is the average high-temperature and 58.1°F (14.5°C) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

How much does it rain in September?

In September, in Pine Brook, the rain falls for 13.5 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

When it does not snow?

June through October are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:40 pm EDT.

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

The average sunshine duration in September is 8.6h.

What is the UV index intensity in September?

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

Average temperature in September - Pine Brook, NJ
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in September: 58.1°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in September
Pine Brook, NJ

Average pressure in September - Pine 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
Pine Brook, NJ

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

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in September
Pine Brook, NJ

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

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

Average rainfall in September
Pine Brook, NJ

Average rainfall in September - Pine Brook, NJ
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").

Average rainfall days in September
Pine Brook, NJ

Average rainfall days in September - Pine Brook, NJ
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in September
Pine Brook, NJ

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

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Pine Brook, NJ

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

The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Pine Brook, NJ

Average sunshine days in September - Pine Brook, NJ
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in September
Pine Brook, NJ

Average UV index in September - Pine 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
Pine Brook, NJ

Average cloud cover in September - Pine Brook, NJ
  • Average cloud cover in September: 38

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Pine Brook, NJ

Average visibility in September - Pine Brook, NJ
  • Average visibility in September: 6mi

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

Pine Brook, New Jersey, USA

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