September weather forecast
Bernardsville, NJ

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Bernardsville, New Jersey, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 57.2°F (14°C).

Temperature

The transition into September subtly indicates a reduction in the average high-temperature, down to a still warm 75°F (23.9°C) from August's moderately hot 81.9°F (27.7°C). The average nighttime temperature lowers to a moderate 57.2°F (14°C) throughout September.

Humidity

The average relative humidity in September in Bernardsville, New Jersey, is 77%.

Rainfall

The month with the least rainfall in Bernardsville is September, when the rain falls for 13.2 days and typically collects 1.57" (40mm) of precipitation.

Snowfall

June through October are months without snowfall in Bernardsville.

Daylight

In Bernardsville, the average length of the day in September is 12h and 27min.
On the first day of September in Bernardsville, New Jersey, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the temperature in September in Bernardsville?

In September, the average high-temperature and low-temperature are 75°F (23.9°C) and 57.2°F (14°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in September in Bernardsville?

The average relative humidity in September in Bernardsville is 77%.

What is the driest month in Bernardsville?

The month with the least rainfall in Bernardsville is September, when the rain falls for 13.2 days and typically collects 1.57" (40mm) of precipitation.

How much does it rain in Bernardsville in September?

In Bernardsville, New Jersey, in September, it is raining for 13.2 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow in Bernardsville?

In Bernardsville, New Jersey, snow does not fall in June through October.

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

In Bernardsville, New Jersey, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September in Bernardsville?

On the first day of September, sunrise is at 6:26 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How long on average sun shines in September in Bernardsville?

In September, the average sunshine duration in Bernardsville is 8.6h.

What is the UV index reading in September in Bernardsville?

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

Average temperature in September - Bernardsville, NJ
  • Average high temperature in September: 75°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 (35.1°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in September
Bernardsville, NJ

Average pressure in September - Bernardsville, 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
Bernardsville, NJ

Average wind speed in September - Bernardsville, NJ
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in September
Bernardsville, NJ

Average humidity in September - Bernardsville, NJ
  • Average humidity in September: 77%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in September
Bernardsville, NJ

Average rainfall in September - Bernardsville, NJ
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in September
Bernardsville, NJ

Average rainfall days in September - Bernardsville, NJ
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in September
Bernardsville, NJ

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

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Bernardsville, NJ

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

The month with the highest number of snowfall days is January (7.2 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
Bernardsville, NJ

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

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 18min).

  • Average sunshine in September: 8h and 4min

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 30min).

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Average sunshine days in September
Bernardsville, NJ

Average sunshine days in September - Bernardsville, NJ
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in September
Bernardsville, NJ

Average UV index in September - Bernardsville, 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).

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Average cloud cover in September
Bernardsville, NJ

Average cloud cover in September - Bernardsville, NJ
  • Average cloud cover in September: 40

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in September
Bernardsville, NJ

Average visibility in September - Bernardsville, NJ
  • Average visibility in September: 5mi

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

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Bernardsville, New Jersey, USA

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