September weather forecast
Hawthorne, NJ

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Weather in September

September, the first month of the autumn in Hawthorne, is also a moderately hot month, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 59.5°F (15.3°C).

Temperature

The transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 75.2°F (24°C) from August's 82.6°F (28.1°C). In the month of September, Hawthorne's average low-temperature falls to a mild 59.5°F (15.3°C).

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Hawthorne, during September, the rain falls for 11.5 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Hawthorne, during the entire year, the rain falls for 132.4 days and collects up to 15.63" (397mm) of precipitation.

Snowfall

In Hawthorne, snow does not fall in May through September.

Daylight

In Hawthorne, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:24 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 September, the average sunshine is 8.8h.

UV index

The average daily maximum UV index in September in Hawthorne, New Jersey, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.

Frequently asked questions

What is the temperature in September?

The high-temperature, in September, in Hawthorne, is 75.2°F (24°C), while the low-temperature averages to 59.5°F (15.3°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 74%.

How much does it rain in September?

In Hawthorne, in September, it is raining for 11.5 days, with typically 1.02" (26mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Hawthorne have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:24 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 many hours of sunshine does Hawthorne have in September?

The average sunshine duration in September is 8.8h.

How high is the UV index in September?

In Hawthorne, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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
Hawthorne, NJ

Average temperature in September - Hawthorne, NJ
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 59.5°F

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in September
Hawthorne, NJ

Average pressure in September - Hawthorne, 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
Hawthorne, NJ

Average wind speed in September - Hawthorne, NJ
  • Average wind speed in September: 6.2mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in September
Hawthorne, NJ

Average humidity in September - Hawthorne, NJ
  • Average humidity in September: 74%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Hawthorne, NJ

Average rainfall in September - Hawthorne, NJ
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is February (0.83").

Average rainfall days in September
Hawthorne, NJ

Average rainfall days in September - Hawthorne, NJ
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in September
Hawthorne, NJ

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

The month with the highest snowfall is March (1.65").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Hawthorne, NJ

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

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Hawthorne, NJ

Average daylight in September / Average sunshine in September - Hawthorne, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in September
Hawthorne, NJ

Average sunshine days in September - Hawthorne, NJ
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.8 days).

Average UV index in September
Hawthorne, NJ

Average UV index in September - Hawthorne, 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
Hawthorne, NJ

Average cloud cover in September - Hawthorne, NJ
  • Average cloud cover in September: 35

The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Hawthorne, NJ

Average visibility in September - Hawthorne, 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).

Hawthorne, New Jersey, USA

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