September weather forecast
Darts Mills, NJ

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Weather in September

September, the first month of the autumn in Darts Mills, is still a warm month, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 75.4°F (24.1°C).

Temperature

September ushers in a minute temperature change, with average high-temperatures reducing from August's warm 82°F (27.8°C) to a still moderately hot 75.4°F (24.1°C). Darts Mills records an average low of 57.2°F (14°C) throughout the nights in September.

Humidity

In Darts Mills, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall in Darts Mills, New Jersey, is September, when the rain falls for 8.5 days and typically collects 0.63" (16mm) of precipitation.

Snowfall

June through October are months without snowfall in Darts Mills.

Daylight

In Darts Mills, the average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:30 pm. On the last day of September, in Darts Mills, sunrise is at 6:55 am and sunset at 6:42 pm EDT.

Sunshine

In Darts Mills, New Jersey, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Darts Mills is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the maximum UV index of 4 suggests this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. To protect against the Sun's most potent rays, avoid direct exposure around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in Darts Mills?

An average high-temperature, in September, in Darts Mills, is 75.4°F (24.1°C) and the average low-temperature is 57.2°F (14°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in September in Darts Mills?

In Darts Mills, New Jersey, the average relative humidity in September is 78%.

What is the driest month in Darts Mills?

The month with the least rainfall in Darts Mills is September, when the rain falls for 8.5 days and typically collects 0.63" (16mm) of precipitation.

How many days does it rain in September in Darts Mills?

In September, the rain falls for 8.5 days. Throughout September, 0.63" (16mm) of precipitation is accumulated.

When it does not snow in Darts Mills?

In Darts Mills, New Jersey, snow does not fall in June through October.

How many hours of daylight does Darts Mills have in September?

The average day length in September in Darts Mills, New Jersey, is 12h and 27min.

When is the sunrise / sunset in September in Darts Mills?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm EDT.

How long on average sun shines in September in Darts Mills?

In September, the average sunshine duration in Darts Mills is 8.5h.

What is the UV index intensity in September in Darts Mills?

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
Darts Mills, NJ

Average temperature in September - Darts Mills, NJ
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23°F).

Average pressure in September
Darts Mills, NJ

Average pressure in September - Darts Mills, 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
Darts Mills, NJ

Average wind speed in September - Darts Mills, NJ
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Darts Mills, NJ

Average humidity in September - Darts Mills, NJ
  • Average humidity in September: 78%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).

Average rainfall in September
Darts Mills, NJ

Average rainfall in September - Darts Mills, NJ
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is September (0.63").

Average rainfall days in September
Darts Mills, NJ

Average rainfall days in September - Darts Mills, NJ
  • Average rainfall days in September: 8.5 days

The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.5 days).

Average snowfall in September
Darts Mills, NJ

Average snowfall in September - Darts Mills, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (1.1").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Darts Mills, NJ

Average snowfall days in September - Darts Mills, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.2 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
Darts Mills, NJ

Average daylight in September / Average sunshine in September - Darts Mills, 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 18min).

  • Average sunshine in September: 8h and 3min

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 30min).

Average sunshine days in September
Darts Mills, NJ

Average sunshine days in September - Darts Mills, NJ
  • Average sunshine days in September: 19.5 days

The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is June (15.6 days).

Average UV index in September
Darts Mills, NJ

Average UV index in September - Darts Mills, NJ
  • Average UV index in September: 4

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, March, November and December (UV index 2).

Average cloud cover in September
Darts Mills, NJ

Average cloud cover in September - Darts Mills, NJ
  • Average cloud cover in September: 40

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
Darts Mills, NJ

Average visibility in September - Darts Mills, NJ
  • Average visibility in September: 5mi

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

Darts Mills, New Jersey, USA

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