September weather forecast
Harneys Corner, NJ

Weather in September

The first month of the autumn, September, is still a warm month in Harneys Corner, New Jersey, with average temperature fluctuating between 59.4°F (15.2°C) and 76.1°F (24.5°C).

Temperature

In Harneys Corner, the average high-temperature in September marginally drops, from 82.9°F (28.3°C) in August, to a still warm 76.1°F (24.5°C). The average low-temperature, in Harneys Corner, is 59.4°F (15.2°C).

Humidity

In Harneys Corner, the average relative humidity is 76%.

Rainfall

In Harneys Corner, in September, during 13.2 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Harneys Corner, during the entire year, the rain falls for 156.8 days and collects up to 31.81" (808mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in Harneys Corner is 12.4h.

Sunshine

The average sunshine is 8.8h.

UV index

The average daily maximum UV index in Harneys Corner, New Jersey, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in September in Harneys Corner?

In September, the average relative humidity is 76%.

How much does it rain in Harneys Corner in September?

In Harneys Corner, in September, during 13.2 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Harneys Corner?

In Harneys Corner snow does not fall in June through September.

Does it snow in Harneys Corner in September?

In Harneys Corner, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Harneys Corner?

In September, the average length of the day in Harneys Corner is 12.4h.

How many hours of sunshine does Harneys Corner have in September?

The average sunshine in September in Harneys Corner is 8.8h.

What is the UV index intensity in September in Harneys Corner?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Harneys Corner, NJ

Average temperature in September - Harneys Corner, NJ
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in September
Harneys Corner, NJ

Average pressure in September - Harneys Corner, NJ
  • Average pressure in September: 30.05"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in September
Harneys Corner, NJ

Average wind speed in September - Harneys Corner, NJ
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in September
Harneys Corner, NJ

Average humidity in September - Harneys Corner, NJ
  • Average humidity in September: 76%

Months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in September
Harneys Corner, NJ

Average rainfall in September - Harneys Corner, NJ
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (3.74").
The driest month (with the least rainfall) is January (1.85").

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Average rainfall days in September
Harneys Corner, NJ

Average rainfall days in September - Harneys Corner, NJ
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (7.9 days).

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Average snowfall in September
Harneys Corner, NJ

Average snowfall in September - Harneys Corner, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.72").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Harneys Corner, NJ

Average snowfall days in September - Harneys Corner, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Harneys Corner, NJ

Average daylight in September / Average sunshine in September - Harneys Corner, NJ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in September
Harneys Corner, NJ

Average sunshine days in September - Harneys Corner, NJ
  • Average sunshine days in September: 14 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.3 days).

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Average UV index in September
Harneys Corner, NJ

Average UV index in September - Harneys Corner, NJ
  • Average UV index in September: 4

Months with the highest UV index are May, June, July and August (UV index 6).
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
Harneys Corner, NJ

Average cloud cover in September - Harneys Corner, NJ
  • Average cloud cover in September: 37

Months with the most cloud cover are February, March and December (Cloud cover 47).
Months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in September
Harneys Corner, NJ

Average visibility in September - Harneys Corner, NJ
  • Average visibility in September: 6mi

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).

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