September weather forecast
Alpha, NJ

Weather in September

September, the first month of the autumn in Alpha, is also a moderately hot month, with an average temperature varying between 55.2°F (12.9°C) and 74.5°F (23.6°C).

Temperature

In September, the average high-temperature marginally drops from 81.1°F (27.3°C) in August to a still moderately hot 74.5°F (23.6°C). The average low-temperature, is 55.2°F (12.9°C).

Humidity

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

Rainfall

September is the month with the least rainfall in Alpha. Rain falls for 8.9 days and accumulates 0.71" (18mm) of precipitation.

Snowfall

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

Daylight

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 7:33 pm. On the last day of September, in Alpha, New Jersey, sunrise is at 6:56 am and sunset at 6:44 pm EDT.

Sunshine

In Alpha, New Jersey, the average sunshine in September is 8.8h.

UV index

In Alpha, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Alpha?

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

What is the driest month in Alpha?

The month with the least rainfall in Alpha is September, when the rain falls for 8.9 days and typically collects 0.71" (18mm) of precipitation.

How many days does it rain in September in Alpha?

In September, in Alpha, the rain falls for 8.9 days. Throughout September, 0.71" (18mm) of precipitation is accumulated.

When it does not snow in Alpha?

May through October are months without snowfall in Alpha, New Jersey.

How many hours of daylight does Alpha have in September?

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

What time are sunrise and sunset in September in Alpha?

On the first day of September in Alpha, New Jersey, sunrise is at 6:27 am and sunset at 7:33 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 Alpha?

The average sunshine duration in September is 8.8h.

What is the UV index reading in September in Alpha?

The average daily maximum UV index in September in Alpha is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.

Average temperature in September
Alpha, NJ

Average temperature in September - Alpha, NJ
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in September: 55.2°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in September
Alpha, NJ

Average pressure in September - Alpha, NJ
  • Average pressure in September: 30.06"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
Alpha, NJ

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in September
Alpha, NJ

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

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall in September
Alpha, NJ

Average rainfall in September - Alpha, NJ
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days in September
Alpha, NJ

Average rainfall days in September - Alpha, NJ
  • Average rainfall days in September: 8.9 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in September
Alpha, NJ

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

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Alpha, NJ

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

The month with the highest number of snowfall days is February (6.8 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
Alpha, NJ

Average daylight in September / Average sunshine in September - Alpha, NJ
  • Average daylight in September: 12h and 27min

The month with the longest days is June (Average daylight: 15h and 2min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in September: 8.8h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in September
Alpha, NJ

Average sunshine days in September - Alpha, NJ
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (14 days).

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Average UV index in September
Alpha, NJ

Average UV index in September - Alpha, 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
Alpha, NJ

Average cloud cover in September - Alpha, NJ
  • Average cloud cover in September: 39

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

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Average visibility in September
Alpha, NJ

Average visibility in September - Alpha, 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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