September weather forecast
Montpelier, VT

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Sunset in the scenic leafy town of Montpelier, Vermont
Sunset in the scenic leafy town of Montpelier, Vermont

Weather in September

September in Montpelier marks the arrival of Autumn. The weather begins to cool down from the highs of summer, adopting a more refreshing ambiance. September experiences a drop in rainfall to 2.09" (53mm), making it the driest month of the year. Despite this, the city witnesses an increase in relative humidity hovering at around 81%. As the leaves change color and the evenings draw in, Montpelier undergoes a beautiful transformation, bathed in the colors of fall.

Temperature

September in Montpelier, Vermont, implies a soft temperature shift, with average high-temperatures reducing from August's moderately hot 74.8°F (23.8°C) to a refreshing 67.6°F (19.8°C). An average temperature of 48°F (8.9°C) is recorded during the nights in September.

Humidity

The average relative humidity in September in Montpelier is 81%.

Rainfall

The month with the least rainfall in Montpelier, Vermont, is September, when the rain falls for 13.1 days and typically collects 2.09" (53mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day in Montpelier is 12h and 30min.
On the first day of September, sunrise is at 6:14 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:32 pm EDT.

Sunshine

In September, the average sunshine is 8h.

UV index

In Montpelier, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 3 in September interprets into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What are the temperatures in Montpelier in September?

In Montpelier, 67.6°F (19.8°C) is the average high-temperature and 48°F (8.9°C) is the average low-temperature during September.

What is the average humidity in September in Montpelier?

The average relative humidity in September in Montpelier, Vermont, is 81%.

What is the driest month in Montpelier?

September is the month with the least rainfall in Montpelier, Vermont. Rain falls for 13.1 days and accumulates 2.09" (53mm) of precipitation.

How much does it rain in Montpelier in September?

In Montpelier, Vermont, during September, the rain falls for 13.1 days and regularly aggregates up to 2.09" (53mm) of precipitation.

When it does not snow in Montpelier?

In Montpelier, Vermont, snow does not fall in June through September.

Does it snow in Montpelier in September?

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

How many hours of daylight does Montpelier have in September?

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

What time are sunrise and sunset in September in Montpelier?

In September, on the first day of the month, sunrise is at 6:14 am and sunset at 7:26 pm. On the last day of the month, in Montpelier, sunrise is at 6:47 am and sunset at 6:32 pm EDT.

How long on average sun shines in September in Montpelier?

In September, the average sunshine duration in Montpelier is 8h.

How high is the UV index in September in Montpelier?

The average daily maximum UV index in September in Montpelier is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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
Montpelier, VT

Average temperature in September - Montpelier, VT
  • Average high temperature in September: 67.6°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in September: 48°F

The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in September
Montpelier, VT

Average pressure in September - Montpelier, 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
Montpelier, VT

Average wind speed in September - Montpelier, VT
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Montpelier, VT

Average humidity in September - Montpelier, VT
  • Average humidity in September: 81%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).

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Average rainfall in September
Montpelier, VT

Average rainfall in September - Montpelier, VT
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days in September
Montpelier, VT

Average rainfall days in September - Montpelier, VT
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in September
Montpelier, VT

Average snowfall in September - Montpelier, VT
  • Average snowfall in September: 0"

The month with the highest snowfall is February (13.31").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Montpelier, VT

Average snowfall days in September - Montpelier, VT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (22.3 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
Montpelier, VT

Average daylight in September / Average sunshine in September - Montpelier, 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 0min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).

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Average sunshine days in September
Montpelier, VT

Average sunshine days in September - Montpelier, VT
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).

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Average UV index in September
Montpelier, VT

Average UV index in September - Montpelier, 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, November and December (UV index 1).

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Average cloud cover in September
Montpelier, VT

Average cloud cover in September - Montpelier, VT
  • Average cloud cover in September: 43

The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).

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Average visibility in September
Montpelier, VT

Average visibility in September - Montpelier, 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).

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Montpelier, Vermont, USA

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