September weather forecast
Lebanon, KY

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Weather in September

September, the first month of the autumn in Lebanon, is still a warm month, with an average temperature fluctuating between 78.6°F (25.9°C) and 59.4°F (15.2°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a warm 84.7°F (29.3°C) in August to a still moderately hot 78.6°F (25.9°C). In September, Lebanon experiences an average nighttime temperature of 59.4°F (15.2°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

The month with the least rainfall in Lebanon is September, when the rain falls for 14.1 days and typically collects 2.13" (54mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Lebanon, Kentucky, the average length of the day in September is 12h and 25min.
On the first day of the month, sunrise is at 7:11 am and sunset at 8:09 pm. On the last day of September, sunrise is at 7:36 am and sunset at 7:25 pm EDT.

Sunshine

In September, the average sunshine is 8.2h.

UV index

In September, the average daily maximum UV index in Lebanon is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Lebanon in September?

September temperatures in Lebanon, Kentucky, vary between a high-temperature of 78.6°F (25.9°C) and a low-temperature of 59.4°F (15.2°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 95°F (35°C).

What is the average humidity in September in Lebanon?

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

What is the driest month in Lebanon?

September is the month with the least rainfall in Lebanon. Rain falls for 14.1 days and accumulates 2.13" (54mm) of precipitation.

How many days does it rain in September in Lebanon?

In Lebanon, in September, during 14.1 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow in Lebanon?

In Lebanon, Kentucky, snow does not fall in May through September.

Does it snow in Lebanon in September?

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

How many hours of daylight does Lebanon have in September?

In Lebanon, the average day length in September is 12h and 25min.

When are sunrise and sunset in September in Lebanon?

In September, on the first day of the month, sunrise is at 7:11 am and sunset at 8:09 pm. On the last day of the month, in Lebanon, Kentucky, sunrise is at 7:36 am and sunset at 7:25 pm EDT.

How long on average sun shines in September in Lebanon?

In Lebanon, the average sunshine duration in September is 8.2h.

How high is the UV index in September in Lebanon?

In Lebanon, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes 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
Lebanon, KY

Average temperature in September - Lebanon, KY
  • Average high temperature in September: 78.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.9°F).

  • Average low temperature in September: 59.4°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).

Average pressure in September
Lebanon, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Lebanon, KY

Average wind speed in September - Lebanon, KY
  • Average wind speed in September: 5.3mph

The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in September
Lebanon, KY

Average humidity in September - Lebanon, KY
  • Average humidity in September: 76%

The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September
Lebanon, KY

Average rainfall in September - Lebanon, KY
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (2.13").

Average rainfall days in September
Lebanon, KY

Average rainfall days in September - Lebanon, KY
  • Average rainfall days in September: 14.1 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.6 days).

Average snowfall in September
Lebanon, KY

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

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Lebanon, KY

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

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

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

  • Average sunshine in September: 8h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in September
Lebanon, KY

Average sunshine days in September - Lebanon, KY
  • Average sunshine days in September: 15 days

The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (11 days).

Average UV index in September
Lebanon, KY

Average UV index in September - Lebanon, 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, November and December (UV index 2).

Average cloud cover in September
Lebanon, KY

Average cloud cover in September - Lebanon, KY
  • Average cloud cover in September: 33

The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September
Lebanon, KY

Average visibility in September - Lebanon, KY
  • Average visibility in September: 5mi

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

Lebanon, Kentucky, USA

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