September weather forecast
Old Mill Farms, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Old Mill Farms, New Jersey, with an average temperature fluctuating between 59°F (15°C) and 75.7°F (24.3°C).

Temperature

The onset of September brings a small shift in high-temperatures, falling from 82.9°F (28.3°C) in August to a still warm 75.7°F (24.3°C). The nighttime temperature in Old Mill Farms, during September, averages of 59°F (15°C).

Humidity

The average relative humidity in September in Old Mill Farms is 77%.

Rainfall

September is the month with the least rainfall. Rain falls for 10 days and accumulates 0.67" (17mm) of precipitation.

Snowfall

In Old Mill Farms, snow does not fall in June through October.

Daylight

The average length of the day in September in Old Mill Farms is 12h and 27min.
On the first day of September, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

Sunshine

In Old Mill Farms, the average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. 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.
Updated: Feb 13, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are the temperatures in Old Mill Farms in September?

An average high-temperature, in September, in Old Mill Farms, is 75.7°F (24.3°C) and the average low-temperature is 59°F (15°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in September in Old Mill Farms?

In Old Mill Farms, the average relative humidity in September is 77%.

What is the driest month in Old Mill Farms?

September is the month with the least rainfall in Old Mill Farms, New Jersey. Rain falls for 10 days and accumulates 0.67" (17mm) of precipitation.

How many days does it rain in September in Old Mill Farms?

In Old Mill Farms, in September, during 10 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

When it does not snow in Old Mill Farms?

In Old Mill Farms, snow does not fall in June through October.

How many hours of daylight does Old Mill Farms have in September?

In Old Mill Farms, the average day length in September is 12h and 27min.

When is the sunrise / sunset in September in Old Mill Farms?

In September, on the first day of the month, sunrise is at 6:26 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How long on average sun shines in September in Old Mill Farms?

The average sunshine duration in September is 8.8h.

What is the UV index reading in September in Old Mill Farms?

In September, the average daily maximum UV index in Old Mill Farms is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Old Mill Farms, NJ

Average temperature in September - Old Mill Farms, NJ
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in September
Old Mill Farms, NJ

Average pressure in September - Old Mill Farms, 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
Old Mill Farms, NJ

Average wind speed in September - Old Mill Farms, NJ
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Old Mill Farms, NJ

Average humidity in September - Old Mill Farms, NJ
  • Average humidity in September: 77%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in September
Old Mill Farms, NJ

Average rainfall in September - Old Mill Farms, NJ
  • Average rainfall in September: 0.67"

The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is September (0.67").

Average rainfall days in September
Old Mill Farms, NJ

Average rainfall days in September - Old Mill Farms, NJ
  • Average rainfall days in September: 10 days

The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in September
Old Mill Farms, NJ

Average snowfall in September - Old Mill Farms, NJ
  • Average snowfall in September: 0"

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

Average snowfall days in September
Old Mill Farms, NJ

Average snowfall days in September - Old Mill Farms, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.6 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
Old Mill Farms, NJ

Average daylight in September / Average sunshine in September - Old Mill Farms, 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: 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).

Average sunshine days in September
Old Mill Farms, NJ

Average sunshine days in September - Old Mill Farms, NJ
  • Average sunshine days in September: 17.2 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in September
Old Mill Farms, NJ

Average UV index in September - Old Mill Farms, NJ
  • Average UV index in September: 4

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, March, November and December (UV index 2).

Average cloud cover in September
Old Mill Farms, NJ

Average cloud cover in September - Old Mill Farms, NJ
  • Average cloud cover in September: 38

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in September
Old Mill Farms, NJ

Average visibility in September - Old Mill Farms, NJ
  • Average visibility in September: 6mi

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

Old Mill Farms, New Jersey, USA

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