September weather forecast
Succasunna, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Succasunna, New Jersey, with an average temperature varying between 55.6°F (13.1°C) and 73.9°F (23.3°C).

Temperature

The onset of September brings a small shift in high-temperatures, falling from a moderately hot 81.1°F (27.3°C) in August to a still warm 73.9°F (23.3°C). Succasunna's nighttime temperature in September falls to an average of 55.6°F (13.1°C).

Humidity

In Succasunna, the average relative humidity in September is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 6.3 days and accumulates 0.16" (4mm) of precipitation.

Snowfall

In Succasunna, snow does not fall in June through September.

Daylight

In Succasunna, the average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In Succasunna, New Jersey, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What are the temperatures in Succasunna in September?

Succasunna in September has an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 55.6°F (13.1°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is calculated to be 86°F (30°C).

What is the average humidity in September in Succasunna?

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

What is the driest month in Succasunna?

The month with the least rainfall in Succasunna is September, when the rain falls for 6.3 days and typically collects 0.16" (4mm) of precipitation.

How much does it rain in Succasunna in September?

In Succasunna, in September, during 6.3 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

When it does not snow in Succasunna?

June through September are months without snowfall.

Does it snow in Succasunna in September?

In Succasunna, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Succasunna?

In September, the average day length is 12h and 27min.

When is the sunrise / sunset in September in Succasunna?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How many hours of sunshine does Succasunna have in September?

In September, the average sunshine duration in Succasunna, New Jersey, is 8.4h.

What is the UV index intensity in September in Succasunna?

In September, the average daily maximum UV index in Succasunna, New Jersey, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
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
Succasunna, NJ

Average temperature in September - Succasunna, NJ
  • Average high temperature in September: 73.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in September: 55.6°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

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Average pressure in September
Succasunna, NJ

Average pressure in September - Succasunna, 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).

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Average wind speed in September
Succasunna, NJ

Average wind speed in September - Succasunna, NJ
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in September
Succasunna, NJ

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

The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in September
Succasunna, NJ

Average rainfall in September - Succasunna, NJ
  • Average rainfall in September: 0.16"

The wettest month (with the highest rainfall) is July (0.79").
The driest month (with the least rainfall) is September (0.16").

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Average rainfall days in September
Succasunna, NJ

Average rainfall days in September - Succasunna, NJ
  • Average rainfall days in September: 6.3 days

The month with the highest number of rainy days is July (9.5 days).
The month with the least rainy days is February (4 days).

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Average snowfall in September
Succasunna, NJ

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

The month with the highest snowfall is March (0.79").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Succasunna, NJ

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

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Succasunna, NJ

Average daylight in September / Average sunshine in September - Succasunna, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in September
Succasunna, NJ

Average sunshine days in September - Succasunna, NJ
  • Average sunshine days in September: 21.8 days

The month with the most sunshine days is November (24.5 days).
The month with the least sunshine days is July (18.3 days).

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Average UV index in September
Succasunna, NJ

Average UV index in September - Succasunna, NJ
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in September
Succasunna, NJ

Average cloud cover in September - Succasunna, NJ
  • Average cloud cover in September: 42

The months with the most cloud cover are February and March (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 36).

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Average visibility in September
Succasunna, NJ

Average visibility in September - Succasunna, NJ
  • Average visibility in September: 5mi

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

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Succasunna, New Jersey, USA

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