September weather forecast
Hammonton, NJ

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Weather in September

The first month of the autumn, September, is still a warm month in Hammonton, New Jersey, with an average temperature fluctuating between 76.3°F (24.6°C) and 62.2°F (16.8°C).

Temperature

Start of September brings a slight shift in the average high-temperature, dipping a bit from August's 82.8°F (28.2°C) to a still moderately hot 76.3°F (24.6°C). Hammonton experiences an average low-temperature of 62.2°F (16.8°C) in the month of September.

Humidity

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

Rainfall

In Hammonton, in September, it is raining for 9.2 days, with typically 0.71" (18mm) of accumulated precipitation. In Hammonton, during the entire year, the rain falls for 115 days and collects up to 12.44" (316mm) of precipitation.

Snowfall

April, June through October are months without snowfall in Hammonton.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:28 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:42 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In Hammonton, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The average high-temperature, in September, in Hammonton, is 76.3°F (24.6°C), while the average low-temperature is 62.2°F (16.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

How much does it rain in September?

In September, the rain falls for 9.2 days. Throughout September, 0.71" (18mm) of precipitation is accumulated.

When it does not snow?

In Hammonton, snow does not fall in April, June through October.

How many hours of daylight does Hammonton have in September?

The average day length in September is 12h and 26min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:29 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 September, the average sunshine duration is 9.1h.

What is the UV index intensity in September in Hammonton?

In Hammonton, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Hammonton, NJ

Average temperature in September - Hammonton, NJ
  • Average high temperature in September: 76.3°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 (39°F).

  • Average low temperature in September: 62.2°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in September
Hammonton, NJ

Average pressure in September - Hammonton, 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 (29.94"Hg).

Average wind speed in September
Hammonton, NJ

Average wind speed in September - Hammonton, NJ
  • Average wind speed in September: 6.8mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in September
Hammonton, NJ

Average humidity in September - Hammonton, NJ
  • Average humidity in September: 78%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September
Hammonton, NJ

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

The wettest month (with the highest rainfall) is July (1.54").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in September
Hammonton, NJ

Average rainfall days in September - Hammonton, NJ
  • Average rainfall days in September: 9.2 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (6.7 days).

Average snowfall in September
Hammonton, NJ

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

The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in September
Hammonton, NJ

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

The month with the highest number of snowfall days is January (3.7 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
Hammonton, NJ

Average daylight in September / Average sunshine in September - Hammonton, 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: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Hammonton, NJ

Average sunshine days in September - Hammonton, NJ
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in September
Hammonton, NJ

Average UV index in September - Hammonton, 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).

Average cloud cover in September
Hammonton, NJ

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

The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in September
Hammonton, NJ

Average visibility in September - Hammonton, 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).

Hammonton, New Jersey, USA

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