September weather forecast
Hightstown, NJ

A scenic neighborhood of Hightstown, New Jersey, with the river below, scenic forest, and a clear scape
A scenic neighborhood of Hightstown, New Jersey, with the river below, scenic forest, and a clear scape

Weather in September

The first month of the autumn, September, is still a warm month in Hightstown, New Jersey, with an average temperature ranging between min 60.4°F (15.8°C) and max 75.4°F (24.1°C).

Temperature

In Hightstown, the average high-temperature in September marginally drops from a moderately hot 81.9°F (27.7°C) in August to a still warm 75.4°F (24.1°C). The average low-temperature, in September, is 60.4°F (15.8°C).

Humidity

In Hightstown, the average relative humidity in September is 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.69" (43mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in September in Hightstown is 12h and 27min.
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, in Hightstown, sunrise is at 6:53 am and sunset at 6:42 pm EDT.

Sunshine

In Hightstown, New Jersey, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Hightstown?

In Hightstown, New Jersey, the average relative humidity in September is 78%.

What is the driest month in Hightstown?

September is the month with the least rainfall in Hightstown. Rain falls for 13.4 days and accumulates 1.69" (43mm) of precipitation.

How much does it rain in Hightstown in September?

In Hightstown, New Jersey, in September, during 13.4 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow in Hightstown?

In Hightstown, snow does not fall in June through October.

What is the average length of the day in September in Hightstown?

The average day length in September is 12h and 27min.

When are sunrise and sunset in September in Hightstown?

On the first day of September in Hightstown, New Jersey, sunrise is at 6:25 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:53 am and sunset at 6:42 pm EDT.

How long on average sun shines in September in Hightstown?

In Hightstown, the average sunshine duration in September is 8.8h.

What is the UV index reading in September in Hightstown?

In September, the average daily maximum UV index in Hightstown is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.

Average temperature in September
Hightstown, NJ

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

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in September: 60.4°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

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Average pressure in September
Hightstown, NJ

Average pressure in September - Hightstown, NJ
  • Average pressure in September: 30.05"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
Hightstown, NJ

Average wind speed in September - Hightstown, NJ
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in September
Hightstown, NJ

Average humidity in September - Hightstown, NJ
  • Average humidity in September: 78%

The months with the highest relative humidity are June and October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in September
Hightstown, NJ

Average rainfall in September - Hightstown, NJ
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is July (3.5").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in September
Hightstown, NJ

Average rainfall days in September - Hightstown, NJ
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in September
Hightstown, NJ

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

The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Hightstown, NJ

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

The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Hightstown, NJ
  • Average daylight in September: 12h and 27min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 22min).

  • 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
Hightstown, NJ

Average sunshine days in September - Hightstown, NJ
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.8 days).

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Average UV index in September
Hightstown, NJ

Average UV index in September - Hightstown, NJ
  • Average UV index in September: 5

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).

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Average cloud cover in September
Hightstown, NJ

Average cloud cover in September - Hightstown, NJ
  • Average cloud cover in September: 36

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

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Average visibility in September
Hightstown, NJ

Average visibility in September - Hightstown, 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).

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