September weather forecast
Trenton, NC

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Weather in September

September, the first month of the autumn in Trenton, is still a warm month, with an average temperature ranging between min 66.9°F (19.4°C) and max 82.9°F (28.3°C).

Temperature

Trenton, North Carolina, observes an average high-temperature of a moderately hot 82.9°F (28.3°C) in September, barely different from 88°F (31.1°C) in August. September's average low-temperature reading in Trenton settles at an enjoyable 66.9°F (19.4°C).

Heat index

September's heat index is calculated to be a hot 91.4°F (33°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

The months with the highest humidity in Trenton, North Carolina, are August, September and December, with an average relative humidity of 79%.

Rainfall

In September, in Trenton, the rain falls for 12 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. In Trenton, during the entire year, the rain falls for 152.9 days and collects up to 24.69" (627mm) of precipitation.

Snowfall

April through October and December are months without snowfall in Trenton, North Carolina.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September in Trenton, sunrise is at 6:42 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:54 pm EDT.

Sunshine

The average sunshine in September in Trenton, North Carolina, is 9.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 6 in September transforms into this advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Trenton?

The high-temperature, in September, in Trenton, is 82.9°F (28.3°C), while the low-temperature averages to 66.9°F (19.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 91.4°F (33°C).

What is the most humid month in Trenton?

The months with the highest humidity in Trenton, North Carolina, are August, September and December, with an average relative humidity of 79%.

What is the average humidity in September in Trenton?

In September, the average relative humidity is 79%.

How much does it rain in Trenton in September?

In Trenton, North Carolina, during September, the rain falls for 12 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Trenton?

In Trenton, North Carolina, snow does not fall in April through October and December.

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

In September, the average day length in Trenton, North Carolina, is 12h and 23min.

When is the sunrise / sunset in September in Trenton?

In September, on the first day of the month, sunrise is at 6:42 am and sunset at 7:35 pm. On the last day of the month, in Trenton, sunrise is at 7:03 am and sunset at 6:54 pm EDT.

How long on average sun shines in September in Trenton?

The average sunshine duration in September in Trenton is 9.1h.

How high is the UV index in September in Trenton?

The average daily maximum UV index in September in Trenton, North Carolina, is 6. A UV Index estimate of 6 to 7 represents a high 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
Trenton, NC

Average temperature in September - Trenton, NC
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in September: 66.9°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).

Average pressure in September
Trenton, NC

Average pressure in September - Trenton, NC
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Trenton, NC

Average wind speed in September - Trenton, NC
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Trenton, NC

Average humidity in September - Trenton, NC
  • Average humidity in September: 79%

The months with the highest relative humidity are August, September and December (79%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Trenton, NC

Average rainfall in September - Trenton, NC
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is August (3.62").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in September
Trenton, NC

Average rainfall days in September - Trenton, NC
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is October (7.9 days).

Average snowfall in September
Trenton, NC

Average snowfall in September - Trenton, NC
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").

Average snowfall days in September
Trenton, NC

Average snowfall days in September - Trenton, NC
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Trenton, NC

Average daylight in September / Average sunshine in September - Trenton, NC
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in September
Trenton, NC

Average sunshine days in September - Trenton, NC
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (7.9 days).

Average UV index in September
Trenton, NC

Average UV index in September - Trenton, NC
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
Trenton, NC

Average cloud cover in September - Trenton, NC
  • Average cloud cover in September: 37

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Trenton, NC

Average visibility in September - Trenton, NC
  • Average visibility in September: 6mi

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

Trenton, North Carolina, USA

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