Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the arrival of September, Lebanon notices a mild change in the average high-temperature, sliding from August's hot 86.5°F (30.3°C) to a moderately hot 80.1°F (26.7°C). Throughout the month of September, Lebanon expects an average low of 59.9°F (15.5°C).Humidity
August through November, with an average relative humidity of 73%, are the least humid months in Lebanon.Rainfall
The month with the least rainfall is September, when the rain falls for 10.6 days and typically collects 1.69" (43mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Lebanon, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:54 pm CDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 in September translates into these instructions:
Ensure safety - Recommendations to avert sunburn are presented. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What are the least humid months?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Lebanon, MO
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in September
Lebanon, MO
- 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 (29.93"Hg).
Average wind speed in September
Lebanon, MO
- Average wind speed in September: 6.6mph
The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in September
Lebanon, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August, September, October and November (73%).
Average rainfall in September
Lebanon, MO
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Lebanon, MO
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.3 days).
Average snowfall in September
Lebanon, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Lebanon, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lebanon, MO
- 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: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Lebanon, MO
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Lebanon, MO
- 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).
Average cloud cover in September
Lebanon, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in September
Lebanon, MO
- 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).
Lebanon, Missouri, USA
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