September weather forecast
National Park, NJ

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Weather in September

September, the first month of the autumn in National Park, is still a warm month, with an average temperature ranging between min 60.8°F (16°C) and max 76.6°F (24.8°C).

Temperature

The arrival of September corresponds with a light shift in temperature, down from a warm 83.7°F (28.7°C) in August to a still moderately hot 76.6°F (24.8°C). Throughout September, the nighttime temperature in National Park averages to a refreshing 60.8°F (16°C).

Humidity

The average relative humidity in September in National Park, New Jersey, is 76%.

Rainfall

In September, in National Park, the rain falls for 12.3 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. Throughout the year, in National Park, there are 142 rainfall days, and 24.41" (620mm) of precipitation is accumulated.

Snowfall

In National Park, snow does not fall in May through October.

Daylight

In September, the average length of the day in National Park, New Jersey, is 12h and 26min.
On the first day of September in National Park, New Jersey, sunrise is at 6:29 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm EDT.

Sunshine

In September, the average sunshine in National Park is 8.9h.

UV index

In National Park, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in September interprets into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What are September temperatures in National Park?

The high-temperature in National Park during September is 76.6°F (24.8°C) and the low-temperature is 60.8°F (16°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 91.4°F (33°C).

What is the average humidity in September in National Park?

In National Park, New Jersey, the average relative humidity in September is 76%.

How much does it rain in National Park in September?

In National Park, New Jersey, during September, the rain falls for 12.3 days and regularly aggregates up to 1.57" (40mm) of precipitation.

When it does not snow in National Park?

In National Park, New Jersey, snow does not fall in May through October.

How many hours of daylight does National Park have in September?

The average day length in September in National Park is 12h and 26min.

What time are sunrise and sunset in September in National Park?

On the first day of September, sunrise is at 6:29 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm EDT.

How long on average sun shines in September in National Park?

In National Park, New Jersey, the average sunshine duration in September is 8.9h.

What is the UV index reading in September in National Park?

In National Park, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
National Park, NJ

Average temperature in September - National Park, NJ
  • Average high temperature in September: 76.6°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.4°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 (25.7°F).

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Average pressure in September
National Park, NJ

Average pressure in September - National Park, NJ
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
National Park, NJ

Average wind speed in September - National Park, NJ
  • Average wind speed in September: 6mph

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

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Average humidity in September
National Park, NJ

Average humidity in September - National Park, NJ
  • Average humidity in September: 76%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
National Park, NJ

Average rainfall in September - National Park, NJ
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in September
National Park, NJ

Average rainfall days in September - National Park, NJ
  • Average rainfall days in September: 12.3 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (6.6 days).

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Average snowfall in September
National Park, NJ

Average snowfall in September - National Park, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
National Park, NJ

Average snowfall days in September - National Park, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.3 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
National Park, NJ

Average daylight in September / Average sunshine in September - National Park, 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
National Park, NJ

Average sunshine days in September - National Park, NJ
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (12.1 days).

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Average UV index in September
National Park, NJ

Average UV index in September - National Park, 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
National Park, NJ

Average cloud cover in September - National Park, NJ
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
National Park, NJ

Average visibility in September - National Park, 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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National Park, New Jersey, USA

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