September weather forecastLebanon, VA
September
Weather in September
September, the first month of the autumn in Lebanon, is still a warm month, with an average temperature ranging between min 54°F (12.2°C) and max 76.8°F (24.9°C).Temperature
A minimal variation is noted in Lebanon's average high-temperature at the onset of September, reaching a still moderately hot 76.8°F (24.9°C) from August's 82°F (27.8°C). In September, the nighttime temperature plummets remarkably from the daily apex to a steady average of 54°F (12.2°C).Humidity
In Lebanon, the average relative humidity in September is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.1" (28mm) of precipitation.Snowfall
In Lebanon, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In Lebanon, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lebanon, VA
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in September
Lebanon, VA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Lebanon, VA
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Lebanon, VA
- Average humidity in September: 78%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Lebanon, VA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (2.17").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in September
Lebanon, VA
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (10.4 days).
Average snowfall in September
Lebanon, VA
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Lebanon, VA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.3 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, VA
- Average daylight in September: 12h and 24min
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 42min).
- Average sunshine in September: 8h and 24min
The months with the most sunshine are June and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Lebanon, VA
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in September
Lebanon, VA
- Average UV index in September: 4
The months with the highest UV index are June 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, VA
- Average cloud cover in September: 38
The months with the most cloud cover are January and February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Lebanon, VA
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
