September weather forecast
Haworth, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Haworth, New Jersey, with an average temperature fluctuating between 75.4°F (24.1°C) and 59.9°F (15.5°C).

Temperature

September ushers in a minor alteration in Haworth's climate, with the average high-temperature moving from August's 82.9°F (28.3°C) to a still moderately hot 75.4°F (24.1°C). Nighttime temperatures in September average to a mild 59.9°F (15.5°C).

Humidity

The average relative humidity in September is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 1.73" (44mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

Sunshine

In Haworth, New Jersey, the average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 transforms into these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

The average high-temperature and low-temperature during September are 75.4°F (24.1°C) and 59.9°F (15.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is appraised at 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 73%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.6 days and typically collects 1.73" (44mm) of precipitation.

How many days does it rain in September?

In Haworth, in September, it is raining for 11.6 days, with typically 1.73" (44mm) of accumulated precipitation.

When it does not snow in Haworth?

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

What is the average length of the day in September?

In Haworth, the average day length in September is 12h and 28min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September in Haworth?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Haworth, NJ

Average temperature in September - Haworth, NJ
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in September
Haworth, NJ

Average pressure in September - Haworth, NJ
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Haworth, NJ

Average wind speed in September - Haworth, NJ
  • Average wind speed in September: 6.3mph

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in September
Haworth, NJ

Average humidity in September - Haworth, NJ
  • Average humidity in September: 73%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).

Average rainfall in September
Haworth, NJ

Average rainfall in September - Haworth, NJ
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in September
Haworth, NJ

Average rainfall days in September - Haworth, NJ
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in September
Haworth, NJ

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

The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Haworth, NJ

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

The month with the highest number of snowfall days is January (6.9 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
Haworth, NJ

Average daylight in September / Average sunshine in September - Haworth, NJ
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Haworth, NJ

Average sunshine days in September - Haworth, NJ
  • Average sunshine days in September: 16.7 days

The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).

Average UV index in September
Haworth, NJ

Average UV index in September - Haworth, 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
Haworth, NJ

Average cloud cover in September - Haworth, NJ
  • Average cloud cover in September: 37

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Haworth, NJ

Average visibility in September - Haworth, 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).

Haworth, New Jersey, USA

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