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
The transition to September results in a modest reduction in average high-temperature, moving from a warm 74.7°F (23.7°C) in August to an enjoyable 67.1°F (19.5°C). Lyndon observes an average nighttime low-temperature of 46.6°F (8.1°C) during the month of September.Humidity
In September, the average relative humidity is 80%.Rainfall
August and September are months with the least rain when the rain falls for 12.7 days and typically aggregates up to 2.13" (54mm) of rain.Snowfall
In Lyndon, snow does not fall in June through September.Daylight
The average length of the day in September in Lyndon is 12h and 31min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:29 pm EDT.
Sunshine
The average sunshine in September in Lyndon is 8.3h.UV index
The average daily maximum UV index in September in Lyndon is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Act with care - The need to guard against sun damage is communicated. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the temperature in September in Lyndon?
What is the average humidity in September in Lyndon?
What is the driest month in Lyndon?
How many days does it rain in September in Lyndon?
When it does not snow in Lyndon?
Does it snow in Lyndon in September?
What is the average length of the day in September in Lyndon?
When are sunrise and sunset in September in Lyndon?
How long on average sun shines in September in Lyndon?
What is the UV index intensity in September in Lyndon?
Average temperature in September
Lyndon, VT
- Average high temperature in September: 67.1°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in September: 46.6°F
The month with the highest average low temperature is July (54.3°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in September
Lyndon, VT
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Lyndon, VT
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Lyndon, VT
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Lyndon, VT
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is October (2.99").
The driest months (with the least rainfall) are August and September (2.13").
Average rainfall days in September
Lyndon, VT
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
Lyndon, VT
- Average snowfall in September: 0"
The month with the highest snowfall is February (13.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lyndon, VT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (22.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lyndon, VT
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in September
Lyndon, VT
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (5 days).
Average UV index in September
Lyndon, VT
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Lyndon, VT
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Lyndon, VT
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Lyndon, Vermont, USA
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