September weather forecast
Gillette, NJ

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Weather in September

September, the first month of the autumn in Gillette, is also a moderately hot month, with an average temperature varying between 75.2°F (24°C) and 58.5°F (14.7°C).

Temperature

As August transitions into September, Gillette sees a gentle drop in the average high-temperature, transitioning from a moderately hot 82°F (27.8°C) to a still warm 75.2°F (24°C). Gillette observes an average nighttime temperature of 58.5°F (14.7°C) during September.

Humidity

In September, the average relative humidity in Gillette is 76%.

Rainfall

The month with the least rainfall in Gillette is September, when the rain falls for 13.1 days and typically collects 1.69" (43mm) of precipitation.

Snowfall

In Gillette, snow does not fall in June through September.

Daylight

In Gillette, the average length of the day in September is 12h and 27min.
On the first day of September in Gillette, sunrise is at 6:25 am and sunset at 7:29 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

In Gillette, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

What is the usual temperature for Gillette in September?

During September, Gillette experiences an average high-temperature of 75.2°F (24°C) and a low-temperature of 58.5°F (14.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 87.8°F (31°C).

What is the average humidity in September in Gillette?

The average relative humidity in September in Gillette, New Jersey, is 76%.

What is the driest month in Gillette?

The month with the least rainfall in Gillette is September, when the rain falls for 13.1 days and typically collects 1.69" (43mm) of precipitation.

How much does it rain in Gillette in September?

In September, the rain falls for 13.1 days. Throughout September, 1.69" (43mm) of precipitation is accumulated.

When it does not snow in Gillette?

June through September are months without snowfall.

Does it snow in Gillette in September?

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

How many hours of daylight does Gillette have in September?

In Gillette, the average day length in September is 12h and 27min.

When is the sunrise / sunset in September in Gillette?

On the first day of September in Gillette, New Jersey, sunrise is at 6:25 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:41 pm EDT.

How many hours of sunshine does Gillette have in September?

The average sunshine duration in September in Gillette is 8.6h.

How high is the UV index in September in Gillette?

The average daily maximum UV index in September in Gillette is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Gillette, NJ

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

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in September
Gillette, NJ

Average pressure in September - Gillette, 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
Gillette, NJ

Average wind speed in September - Gillette, NJ
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in September
Gillette, NJ

Average humidity in September - Gillette, NJ
  • Average humidity in September: 76%

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

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Average rainfall in September
Gillette, NJ

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

The wettest months (with the highest rainfall) are July and December (3.11").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in September
Gillette, NJ

Average rainfall days in September - Gillette, NJ
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is January (9.2 days).

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Average snowfall in September
Gillette, NJ

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

The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Gillette, NJ

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

The month with the highest number of snowfall days is January (7.9 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
Gillette, NJ

Average daylight in September / Average sunshine in September - Gillette, 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 36min).

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Average sunshine days in September
Gillette, NJ

Average sunshine days in September - Gillette, NJ
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (11.3 days).

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Average UV index in September
Gillette, NJ

Average UV index in September - Gillette, 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
Gillette, NJ

Average cloud cover in September - Gillette, NJ
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in September
Gillette, NJ

Average visibility in September - Gillette, NJ
  • Average visibility in September: 6mi

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

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Gillette, New Jersey, USA

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