September weather forecast and climate
Bernardsville, NJ

Weather in September

The first month of the autumn, September, is still a warm month in Bernardsville, New Jersey, with average temperature ranging between max 75°F (23.9°C) and min 57.2°F (14°C).

Temperature

In September, the average high-temperature marginally drops, from a moderately hot 81.9°F (27.7°C) in August, to a still warm 75°F (23.9°C). In September, the average low-temperature is 57.2°F (14°C).

Humidity

In Bernardsville, New Jersey, the average relative humidity in September 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

The average length of the day is 12.4h.

Sunshine

The average sunshine in Bernardsville is 8.6h.

UV index

In Bernardsville, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 temperature in September in Bernardsville?

The average high-temperature, in September, in Bernardsville, is 75°F (23.9°C), while the average low-temperature is 57.2°F (14°C).

What is the average humidity in September in Bernardsville?

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

How much does it rain in Bernardsville in September?

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

What is the driest month in Bernardsville?

September is the month with the least rainfall. Rain falls for 13.2 days and accumulates 1.57" (40mm) of precipitation.

When it does not snow in Bernardsville?

June through October are months without snowfall in Bernardsville, New Jersey.

How many hours of daylight does Bernardsville have in September?

In Bernardsville, New Jersey, the average length of the day in September is 12.4h.

How many hours of sunshine does Bernardsville have in September?

The average sunshine in September is 8.6h.

What is the UV index reading in September in Bernardsville?

In Bernardsville, New Jersey, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

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"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

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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%

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").
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).
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: 12.4h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in September: 8.6h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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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

Months with the highest UV index are June, July and August (UV index 6).
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

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

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

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