September weather forecast
West Lebanon, IN

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Weather in September

September, the first month of the autumn in West Lebanon, is also a moderately hot month, with an average temperature varying between 75.7°F (24.3°C) and 57.6°F (14.2°C).

Temperature

West Lebanon, Indiana, marks the start of September with an average high-temperature of a still warm 75.7°F (24.3°C), hinting at a slight fluctuation from August's 80.2°F (26.8°C). During September, West Lebanon records a consistent average nighttime temperature of 57.6°F (14.2°C).

Humidity

In West Lebanon, the average relative humidity in September is 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.5" (38mm) of precipitation.

Snowfall

May through October are months without snowfall in West Lebanon, Indiana.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 7:17 am and sunset at 8:20 pm. On the last day of September, sunrise is at 7:45 am and sunset at 7:32 pm EDT.

Sunshine

The average sunshine in September in West Lebanon is 8.4h.

UV index

In September, the average daily maximum UV index in West Lebanon is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 5 in September suggests the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in West Lebanon?

The average high-temperature, in September, in West Lebanon, is 75.7°F (24.3°C), while the average low-temperature is 57.6°F (14.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in July is estimated at 87.8°F (31°C).

What is the average humidity in September in West Lebanon?

In September, the average relative humidity in West Lebanon is 78%.

What is the driest month in West Lebanon?

September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.5" (38mm) of precipitation.

How many days does it rain in September in West Lebanon?

In West Lebanon, Indiana, in September, during 12.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in West Lebanon?

May through October are months without snowfall in West Lebanon.

How many hours of daylight does West Lebanon have in September?

The average day length in September in West Lebanon is 12h and 26min.

When is the sunrise / sunset in September in West Lebanon?

On the first day of September in West Lebanon, sunrise is at 7:17 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 7:32 pm EDT.

How many hours of sunshine does West Lebanon have in September?

The average sunshine duration in September is 8.4h.

How high is the UV index in September in West Lebanon?

The average daily maximum UV index in September in West Lebanon is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
West Lebanon, IN

Average temperature in September - West Lebanon, IN
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in September: 57.6°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in September
West Lebanon, IN

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
West Lebanon, IN

Average wind speed in September - West Lebanon, IN
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in September
West Lebanon, IN

Average humidity in September - West Lebanon, IN
  • Average humidity in September: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

Average rainfall in September
West Lebanon, IN

Average rainfall in September - West Lebanon, IN
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in September
West Lebanon, IN

Average rainfall days in September - West Lebanon, IN
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in September
West Lebanon, IN

Average snowfall in September - West Lebanon, IN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
West Lebanon, IN

Average snowfall days in September - West Lebanon, IN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11 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
West Lebanon, IN

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

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 24min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in September
West Lebanon, IN

Average sunshine days in September - West Lebanon, IN
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (9 days).

Average UV index in September
West Lebanon, IN

Average UV index in September - West Lebanon, IN
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
West Lebanon, IN

Average cloud cover in September - West Lebanon, IN
  • Average cloud cover in September: 33

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are June and August (Cloud cover 32).

Average visibility in September
West Lebanon, IN

Average visibility in September - West Lebanon, IN
  • Average visibility in September: 6mi

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

West Lebanon, Indiana, USA

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