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
West Lebanon's weather subtly changes with the onset of September, barely falling from a moderately hot 76.3°F (24.6°C) in August to an agreeable 68.7°F (20.4°C). In the month of September, the average temperature dips to a frosty 48.6°F (9.2°C) during the night.Humidity
In West Lebanon, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 1.85" (47mm) of precipitation.Snowfall
In West Lebanon, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:13 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:31 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September in West Lebanon is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 3 during September translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does West Lebanon have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does West Lebanon have in September?
What is the UV index intensity in September?
Average temperature in September
West Lebanon, NH
- Average high temperature in September: 68.7°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in September: 48.6°F
The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in September
West Lebanon, NH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
West Lebanon, NH
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
West Lebanon, NH
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
West Lebanon, NH
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is October (2.99").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in September
West Lebanon, NH
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
West Lebanon, NH
- Average snowfall in September: 0"
The month with the highest snowfall is February (10.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Lebanon, NH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Lebanon, NH
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
West Lebanon, NH
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is March (9.8 days).
Average UV index in September
West Lebanon, NH
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
West Lebanon, NH
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in September
West Lebanon, NH
- Average visibility in September: 4mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
West Lebanon, New Hampshire, USA
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