September weather forecast
Newtonville, NJ

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Weather in September

The first month of the autumn, September, is still a warm month in Newtonville, New Jersey, with an average temperature varying between 76.1°F (24.5°C) and 61.5°F (16.4°C).

Temperature

A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 82.6°F (28.1°C) to a still moderately hot 76.1°F (24.5°C). During September, the nighttime temperature in Newtonville, New Jersey, averages to a comfortable 61.5°F (16.4°C).

Humidity

June, September and October, with an average relative humidity of 79%, are the most humid months in Newtonville.

Rainfall

In Newtonville, in September, during 9.4 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 119.7 rainfall days, and 15" (381mm) of precipitation is accumulated.

Snowfall

In Newtonville, snow does not fall in May through October.

Daylight

In September, the average length of the day in Newtonville is 12h and 26min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In Newtonville, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the average September temperature in Newtonville?

The high-temperature in Newtonville during September is 76.1°F (24.5°C) and the low-temperature is 61.5°F (16.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What are the most humid months in Newtonville?

June, September and October, with an average relative humidity of 79%, are most humid months in Newtonville.

What is the average humidity in September in Newtonville?

In Newtonville, New Jersey, the average relative humidity in September is 79%.

How many days does it rain in September in Newtonville?

In Newtonville, New Jersey, in September, during 9.4 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

When it does not snow in Newtonville?

May through October are months without snowfall in Newtonville.

How many hours of daylight does Newtonville have in September?

In Newtonville, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Newtonville?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:30 pm. On the last day of the month, in Newtonville, sunrise is at 6:55 am and sunset at 6:43 pm EDT.

How many hours of sunshine does Newtonville have in September?

In September, the average sunshine duration is 8.9h.

How high is the UV index in September in Newtonville?

In September, the average daily maximum UV index in Newtonville, New Jersey, is 5. A UV Index reading of 3 to 5 represents 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
Newtonville, NJ

Average temperature in September - Newtonville, NJ
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in September: 61.5°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 (27°F).

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Average pressure in September
Newtonville, NJ

Average pressure in September - Newtonville, 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
Newtonville, NJ

Average wind speed in September - Newtonville, NJ
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in September
Newtonville, NJ

Average humidity in September - Newtonville, NJ
  • Average humidity in September: 79%

The months with the highest relative humidity are June, September and October (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in September
Newtonville, NJ

Average rainfall in September - Newtonville, NJ
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days in September
Newtonville, NJ

Average rainfall days in September - Newtonville, NJ
  • Average rainfall days in September: 9.4 days

The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in September
Newtonville, NJ

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

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Newtonville, NJ

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

The month with the highest number of snowfall days is January (4.5 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
Newtonville, NJ

Average daylight in September / Average sunshine in September - Newtonville, NJ
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Newtonville, NJ

Average sunshine days in September - Newtonville, NJ
  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.8 days).

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Average UV index in September
Newtonville, NJ

Average UV index in September - Newtonville, 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
Newtonville, NJ

Average cloud cover in September - Newtonville, NJ
  • Average cloud cover in September: 37

The months with the most cloud cover are February and March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 31).

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Average visibility in September
Newtonville, NJ

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

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