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 shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 76.8°F (24.9°C) to an agreeable 69.3°F (20.7°C). In September, the average low-temperature records at a frosty 48.9°F (9.4°C) during the nights.Humidity
In September, the average relative humidity is 79%.Rainfall
In Vergennes, during September, the rain falls for 12 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Vergennes, Vermont, during the entire year, the rain falls for 174 days and collects up to 26.06" (662mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Vergennes, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:35 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Vergennes, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Vergennes?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September in Vergennes?
How many hours of sunshine does Vergennes have in September?
What is the UV index intensity in September?
Average temperature in September
Vergennes, VT
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 48.9°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in September
Vergennes, VT
- 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
Vergennes, VT
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Vergennes, VT
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Vergennes, VT
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is June (2.95").
The driest months (with the least rainfall) are January and February (1.65").
Average rainfall days in September
Vergennes, VT
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is April (18.4 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Vergennes, VT
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Vergennes, VT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Vergennes, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in September
Vergennes, VT
- Average sunshine days in September: 15 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Vergennes, VT
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Vergennes, VT
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Vergennes, VT
- Average visibility in September: 5mi
The month with the highest visibility is May (6mi).
The months with the lowest visibility are February and March (4mi).
Vergennes, Vermont, USA
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