September weather forecastWest Lebanon, IN
September
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 12h and 24min
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 24min
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: 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: 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: 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: 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).





