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 start of September involves a subtle temperature drop, shifting from a moderately hot 75.9°F (24.4°C) in August to an agreeable 68.9°F (20.5°C). Swanton records a steady low-temperature average of 50.5°F (10.3°C) during September.Humidity
In Swanton, Vermont, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall in Swanton is September, when the rain falls for 11.7 days and typically collects 2.01" (51mm) of precipitation.Snowfall
June through September are months without snowfall in Swanton.Daylight
In Swanton, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:15 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:34 pm EDT.
Sunshine
The average sunshine in September in Swanton is 8.9h.UV index
In Swanton, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in September leads to these recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What are the temperatures in Swanton in September?
What is the average humidity in September in Swanton?
What is the driest month in Swanton?
How much does it rain in Swanton in September?
When it does not snow in Swanton?
Does it snow in Swanton in September?
What is the average length of the day in September in Swanton?
When is the sunrise / sunset in September in Swanton?
How many hours of sunshine does Swanton have in September?
What is the UV index reading in September in Swanton?
Average temperature in September
Swanton, VT
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in September
Swanton, VT
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Swanton, VT
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Swanton, VT
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in September
Swanton, VT
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is June (3.31").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in September
Swanton, VT
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is June (19.1 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in September
Swanton, VT
- Average snowfall in September: 0"
The month with the highest snowfall is February (10.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Swanton, VT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Swanton, 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 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Swanton, VT
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in September
Swanton, VT
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Swanton, VT
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Swanton, VT
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August and September (6mi).
The months with the lowest visibility are January and February (4mi).
Swanton, Vermont, USA
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