September weather forecast
Greenbriar, NJ

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Weather in September

September, the first month of the autumn in Greenbriar, is still a warm month, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 73.6°F (23.1°C).

Temperature

In September, the average high-temperature marginally drops from a warm 79.7°F (26.5°C) in August to a still moderately hot 73.6°F (23.1°C). Greenbriar's nighttime temperatures in September settle close to daytime highs at an average of 64.6°F (18.1°C).

Humidity

In Greenbriar, the average relative humidity in September is 77%.

Rainfall

In Greenbriar, in September, during 12.3 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. In Greenbriar, during the entire year, the rain falls for 137.7 days and collects up to 19.09" (485mm) of precipitation.

Snowfall

In Greenbriar, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of September, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:40 pm EDT.

Sunshine

In September, the average sunshine is 9h.

UV index

The average daily maximum UV index in September in Greenbriar is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 5 during September translates into the following guidance:
Take necessary precautions - Protection from skin and eye injury is mandatory. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What are September temperatures in Greenbriar?

The average high-temperature, in September, in Greenbriar, is 73.6°F (23.1°C), while the average low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in July is appraised at 86°F (30°C).

What is the average humidity in September in Greenbriar?

In September, the average relative humidity in Greenbriar, New Jersey, is 77%.

How much does it rain in Greenbriar in September?

In Greenbriar, New Jersey, in September, during 12.3 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow in Greenbriar?

In Greenbriar, snow does not fall in April through October.

How many hours of daylight does Greenbriar have in September?

In Greenbriar, New Jersey, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Greenbriar?

In September, on the first day of the month, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, in Greenbriar, New Jersey, sunrise is at 6:52 am and sunset at 6:40 pm EDT.

How long on average sun shines in September in Greenbriar?

In Greenbriar, the average sunshine duration in September is 9h.

What is the UV index intensity in September in Greenbriar?

In September, the average daily maximum UV index in Greenbriar is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Greenbriar, NJ

Average temperature in September - Greenbriar, NJ
  • Average high temperature in September: 73.6°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

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Average pressure in September
Greenbriar, NJ

Average pressure in September - Greenbriar, 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
Greenbriar, NJ

Average wind speed in September - Greenbriar, NJ
  • Average wind speed in September: 9.3mph

The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).

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Average humidity in September
Greenbriar, NJ

Average humidity in September - Greenbriar, NJ
  • Average humidity in September: 77%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).

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Average rainfall in September
Greenbriar, NJ

Average rainfall in September - Greenbriar, NJ
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in September
Greenbriar, NJ

Average rainfall days in September - Greenbriar, NJ
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (7 days).

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Average snowfall in September
Greenbriar, NJ

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

The month with the highest snowfall is January (0.91").
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
Greenbriar, NJ

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

The month with the highest number of snowfall days is January (4.4 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
Greenbriar, NJ

Average daylight in September / Average sunshine in September - Greenbriar, 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: 9h and 0min

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
Greenbriar, NJ

Average sunshine days in September - Greenbriar, NJ
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in September
Greenbriar, NJ

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

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, November and December (UV index 2).

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Average cloud cover in September
Greenbriar, NJ

Average cloud cover in September - Greenbriar, NJ
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in September
Greenbriar, NJ

Average visibility in September - Greenbriar, 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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Greenbriar, New Jersey, USA

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