September weather forecast
Herbertsville, NJ

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Weather in September

September, the first month of the autumn in Herbertsville, is still a pleasant month, with an average temperature varying between 65.1°F (18.4°C) and 72.5°F (22.5°C).

Temperature

Herbertsville's transition into September involves a gentle shift in temperature, receding from a warm 78.6°F (25.9°C) in August to a pleasant 72.5°F (22.5°C). In September, Herbertsville's nights cool slightly to a consistent average temperature of 65.1°F (18.4°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Herbertsville, during September, the rain falls for 13 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, in Herbertsville, there are 158.1 rainfall days, and 34.13" (867mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Herbertsville, the average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

Sunshine

In Herbertsville, the average sunshine in September is 9h.

UV index

In Herbertsville, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

During September, Herbertsville experiences an average high-temperature of 72.5°F (22.5°C) and a low-temperature of 65.1°F (18.4°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How many days does it rain in September?

In Herbertsville, during September, the rain falls for 13 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow in Herbertsville?

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

What is the average length of the day in September?

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

When is the sunrise / sunset in September in Herbertsville?

On the first day of September, sunrise is at 6:24 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

How many hours of sunshine does Herbertsville have in September?

In September, the average sunshine duration is 9h.

What is the UV index reading in September?

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
Herbertsville, NJ

Average temperature in September - Herbertsville, NJ
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 65.1°F

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

Average pressure in September
Herbertsville, NJ

Average pressure in September - Herbertsville, NJ
  • Average pressure in September: 30.05"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
Herbertsville, NJ

Average wind speed in September - Herbertsville, NJ
  • Average wind speed in September: 9.8mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity in September
Herbertsville, NJ

Average humidity in September - Herbertsville, NJ
  • Average humidity in September: 77%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in September
Herbertsville, NJ

Average rainfall in September - Herbertsville, NJ
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is July (3.78").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in September
Herbertsville, NJ

Average rainfall days in September - Herbertsville, NJ
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in September
Herbertsville, NJ

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

The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Herbertsville, NJ

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

The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Herbertsville, 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in September
Herbertsville, NJ

Average sunshine days in September - Herbertsville, NJ
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (12.8 days).

Average UV index in September
Herbertsville, NJ

Average UV index in September - Herbertsville, NJ
  • Average UV index in September: 5

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

Average cloud cover in September
Herbertsville, NJ

Average cloud cover in September - Herbertsville, NJ
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Herbertsville, NJ

Average visibility in September - Herbertsville, 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).

Herbertsville, New Jersey, USA

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