September weather forecast
Trenton, KY

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Weather in September

The first month of the autumn, September, is still a warm month in Trenton, Kentucky, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 80.4°F (26.9°C).

Temperature

September signifies a gentle decline in Trenton's average high-temperature, easing from a tropical 86°F (30°C) in August to a moderately hot 80.4°F (26.9°C). Throughout September nights, Trenton experiences a consistent temperature average of 61.3°F (16.3°C).

Humidity

In September, the average relative humidity is 75%.

Rainfall

The month with the least rainfall in Trenton is September, when the rain falls for 10.8 days and typically collects 0.75" (19mm) of precipitation.

Snowfall

In Trenton, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:20 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:33 pm CDT.

Sunshine

In September, the average sunshine in Trenton is 8.8h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 5 in September leads to these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

What are September temperatures in Trenton?

In Trenton, 80.4°F (26.9°C) is the average high-temperature and 61.3°F (16.3°C) is the average low-temperature during September. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 98.6°F (37°C).

What is the average humidity in September in Trenton?

In Trenton, the average relative humidity in September is 75%.

What is the driest month in Trenton?

The month with the least rainfall in Trenton, Kentucky, is September, when the rain falls for 10.8 days and typically collects 0.75" (19mm) of precipitation.

How much does it rain in Trenton in September?

In September, in Trenton, the rain falls for 10.8 days. Throughout September, 0.75" (19mm) of precipitation is accumulated.

When it does not snow in Trenton?

In Trenton, Kentucky, snow does not fall in April through November.

How many hours of daylight does Trenton have in September?

In Trenton, Kentucky, the average day length in September is 12h and 24min.

When is the sunrise / sunset in September in Trenton?

On the first day of September in Trenton, sunrise is at 6:20 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:33 pm CDT.

How long on average sun shines in September in Trenton?

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

What is the UV index reading in September in Trenton?

In Trenton, Kentucky, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium 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, KY

Average temperature in September - Trenton, KY
  • Average high temperature in September: 80.4°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

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Average pressure in September
Trenton, KY

Average pressure in September - Trenton, KY
  • Average pressure in September: 30.03"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in September
Trenton, KY

Average wind speed in September - Trenton, KY
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in September
Trenton, KY

Average humidity in September - Trenton, KY
  • Average humidity in September: 75%

The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Trenton, KY

Average rainfall in September - Trenton, KY
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is September (0.75").

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Average rainfall days in September
Trenton, KY

Average rainfall days in September - Trenton, KY
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Trenton, KY

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

The months with the highest snowfall are January, March and December (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Trenton, KY

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

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Trenton, KY

Average sunshine days in September - Trenton, KY
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in September
Trenton, KY

Average UV index in September - Trenton, KY
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Trenton, KY

Average cloud cover in September - Trenton, KY
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in September
Trenton, KY

Average visibility in September - Trenton, KY
  • 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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Trenton, Kentucky, USA

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