September weather forecast
Oak Valley, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Oak Valley, New Jersey, with an average temperature ranging between max 76.5°F (24.7°C) and min 61.2°F (16.2°C).

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from 83.7°F (28.7°C) to a still warm 76.5°F (24.7°C). In the month of September, Oak Valley's average low-temperature falls to a comfortable 61.2°F (16.2°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

In September, the rain falls for 9.3 days. Throughout September, 0.55" (14mm) of precipitation is accumulated. Throughout the year, there are 113.4 rainfall days, and 9.25" (235mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Oak Valley.

Daylight

In Oak Valley, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:44 pm EDT.

Sunshine

In Oak Valley, the average sunshine in September is 9.1h.

UV index

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

In Oak Valley, 76.5°F (24.7°C) is the average high-temperature and 61.2°F (16.2°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in September?

In Oak Valley, the average relative humidity in September is 76%.

How many days does it rain in September?

In Oak Valley, during September, the rain falls for 9.3 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Oak Valley have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:29 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm EDT.

How many hours of sunshine does Oak Valley have in September?

In Oak Valley, the average sunshine duration in September is 9.1h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe 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
Oak Valley, NJ

Average temperature in September - Oak Valley, NJ
  • Average high temperature in September: 76.5°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 61.2°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in September
Oak Valley, NJ

Average pressure in September - Oak Valley, NJ
  • Average pressure in September: 30.05"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).

Average wind speed in September
Oak Valley, NJ

Average wind speed in September - Oak Valley, NJ
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are March and April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in September
Oak Valley, NJ

Average humidity in September - Oak Valley, NJ
  • Average humidity in September: 76%

The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is April (71%).

Average rainfall in September
Oak Valley, NJ

Average rainfall in September - Oak Valley, NJ
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is August (1.1").
The driest month (with the least rainfall) is January (0.51").

Average rainfall days in September
Oak Valley, NJ

Average rainfall days in September - Oak Valley, NJ
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is November (6.3 days).

Average snowfall in September
Oak Valley, NJ

Average snowfall in September - Oak Valley, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.59").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Oak Valley, NJ

Average snowfall days in September - Oak Valley, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.5 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
Oak Valley, NJ

Average daylight in September / Average sunshine in September - Oak Valley, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in September
Oak Valley, NJ

Average sunshine days in September - Oak Valley, NJ
  • Average sunshine days in September: 18.8 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (14.7 days).

Average UV index in September
Oak Valley, NJ

Average UV index in September - Oak Valley, 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
Oak Valley, NJ

Average cloud cover in September - Oak Valley, NJ
  • Average cloud cover in September: 36

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

Average visibility in September
Oak Valley, NJ

Average visibility in September - Oak Valley, 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).

Oak Valley, New Jersey, USA

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