September weather forecast
Highland Lakes, NJ

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Weather in September

September, the first month of the autumn in Highland Lakes, is also an agreeable month, with an average temperature varying between 73.2°F (22.9°C) and 53.4°F (11.9°C).

Temperature

Highland Lakes's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 80.1°F (26.7°C) in August to an agreeable 73.2°F (22.9°C). September nights are marked by an average temperature drop to a cool 53.4°F (11.9°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

In September, the rain falls for 12.4 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. In Highland Lakes, during the entire year, the rain falls for 149.5 days and collects up to 28.23" (717mm) of precipitation.

Snowfall

In Highland Lakes, snow does not fall in June through September.

Daylight

In Highland Lakes, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:40 pm EDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 4 suggests this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the average September temperature in Highland Lakes?

During September, Highland Lakes experiences an average high-temperature of 73.2°F (22.9°C) and a low-temperature of 53.4°F (11.9°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in July is appraised at 89.6°F (32°C).

What is the average humidity in September in Highland Lakes?

In September, the average relative humidity is 80%.

How much does it rain in Highland Lakes in September?

In Highland Lakes, New Jersey, during September, the rain falls for 12.4 days and regularly aggregates up to 1.73" (44mm) of precipitation.

When it does not snow in Highland Lakes?

In Highland Lakes, New Jersey, snow does not fall in June through September.

Does it snow in Highland Lakes in September?

In Highland Lakes, New Jersey, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Highland Lakes have in September?

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

When is the sunrise / sunset in September in Highland Lakes?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of the month, in Highland Lakes, New Jersey, sunrise is at 6:54 am and sunset at 6:40 pm EDT.

How many hours of sunshine does Highland Lakes have in September?

In Highland Lakes, New Jersey, the average sunshine duration in September is 8.4h.

What is the UV index reading in September in Highland Lakes?

In Highland Lakes, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
Highland Lakes, NJ

Average temperature in September - Highland Lakes, NJ
  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in September
Highland Lakes, NJ

Average pressure in September - Highland Lakes, NJ
  • Average pressure in September: 30.06"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).

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Average wind speed in September
Highland Lakes, NJ

Average wind speed in September - Highland Lakes, NJ
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Highland Lakes, NJ

Average humidity in September - Highland Lakes, NJ
  • Average humidity in September: 80%

The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in September
Highland Lakes, NJ

Average rainfall in September - Highland Lakes, NJ
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in September
Highland Lakes, NJ

Average rainfall days in September - Highland Lakes, NJ
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in September
Highland Lakes, NJ

Average snowfall in September - Highland Lakes, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Highland Lakes, NJ

Average snowfall days in September - Highland Lakes, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.8 days).
The 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
Highland Lakes, NJ

Average daylight in September / Average sunshine in September - Highland Lakes, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in September
Highland Lakes, NJ

Average sunshine days in September - Highland Lakes, NJ
  • Average sunshine days in September: 15.8 days

The months with the most sunshine days are January and November (18.8 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in September
Highland Lakes, NJ

Average UV index in September - Highland Lakes, NJ
  • Average UV index in September: 4

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Highland Lakes, NJ

Average cloud cover in September - Highland Lakes, NJ
  • Average cloud cover in September: 42

The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).

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Average visibility in September
Highland Lakes, NJ

Average visibility in September - Highland Lakes, NJ
  • Average visibility in September: 5mi

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

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Highland Lakes, New Jersey, USA

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