September weather forecast
Vergennes, VT

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Weather in September

Entering into September, Vergennes experiences the first hints of fall. The temperature starts to fall, averaging round 69.3°F (20.7°C), and the days begin to shorten. Touches of autumn start appearing with leaves turning yellow and orange. Regular rains maintain the city's vibrancy. In totality, September gifts Vergennes a pleasant transition from the hot summer to the cool autumn.

Temperature

As September commences, the average high-temperature subtly reduces, transitioning from a warm 76.8°F (24.9°C) in August to a pleasant 69.3°F (20.7°C). During the nights in September, Vergennes experiences a consistent average temperature of 48.9°F (9.4°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Vergennes, in September, during 12 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Vergennes, 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

The average length of the day in September in Vergennes, Vermont, 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, in Vergennes, Vermont, sunrise is at 6:50 am and sunset at 6:35 pm EDT.

Sunshine

In Vergennes, Vermont, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 3 during September morphs into the following directions:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the temperature in September in Vergennes?

The average high-temperature, in September, in Vergennes, is 69.3°F (20.7°C), while the average low-temperature is 48.9°F (9.4°C).

What is the average humidity in September in Vergennes?

The average relative humidity in September is 79%.

How many days does it rain in September in Vergennes?

In Vergennes, during September, the rain falls for 12 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Vergennes?

In Vergennes, snow does not fall in June through September.

Does it snow in Vergennes in September?

In Vergennes, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Vergennes?

In Vergennes, Vermont, the average day length in September is 12h and 30min.

What time are sunrise and sunset in September in Vergennes?

On the first day of September in Vergennes, Vermont, sunrise is at 6:16 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:35 pm EDT.

How many hours of sunshine does Vergennes have in September?

The average sunshine duration in September in Vergennes, Vermont, is 8.8h.

How high is the UV index in September in Vergennes?

The average daily maximum UV index in September in Vergennes is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Vergennes, VT

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).

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Average pressure in September
Vergennes, VT

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).

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Average wind speed in September
Vergennes, VT

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).

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Average humidity in September
Vergennes, VT

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%).

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Average rainfall in September
Vergennes, VT

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").

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Average rainfall days in September
Vergennes, VT

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).

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Average snowfall in September
Vergennes, VT

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").

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Average snowfall days in September
Vergennes, VT

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).

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Average daylight in September /
Average sunshine in September
Vergennes, VT

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).

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Average sunshine days in September
Vergennes, VT

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).

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Average UV index in September
Vergennes, VT

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).

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Average cloud cover in September
Vergennes, VT

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).

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Average visibility in September
Vergennes, VT

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).

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Vergennes, Vermont, USA

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