September weather forecast
Marlboro, VT

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Weather in September

September, the first month of the autumn in Marlboro, is also an agreeable month, with an average temperature varying between 50.9°F (10.5°C) and 70.2°F (21.2°C).

Temperature

Marlboro's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 77.9°F (25.5°C) to an agreeable 70.2°F (21.2°C). September sees the temperature falling to a mean low of 50.9°F (10.5°C).

Humidity

In September, the average relative humidity in Marlboro is 79%.

Rainfall

The month with the least rainfall is September, when the rain falls for 6.8 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

In Marlboro, Vermont, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:25 pm. On the last day of September, in Marlboro, sunrise is at 6:47 am and sunset at 6:33 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index in Marlboro is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Marlboro in September?

The high-temperature, in September, in Marlboro, is 70.2°F (21.2°C), while the low-temperature averages to 50.9°F (10.5°C).

What is the average humidity in September in Marlboro?

The average relative humidity in September in Marlboro is 79%.

What is the driest month in Marlboro?

The month with the least rainfall in Marlboro, Vermont, is September, when the rain falls for 6.8 days and typically collects 0.43" (11mm) of precipitation.

How much does it rain in Marlboro in September?

In Marlboro, in September, it is raining for 6.8 days, with typically 0.43" (11mm) of accumulated precipitation.

When it does not snow in Marlboro?

May through September are months without snowfall in Marlboro.

Does it snow in Marlboro in September?

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

How many hours of daylight does Marlboro have in September?

In September, the average day length in Marlboro is 12h and 29min.

What time are sunrise and sunset in September in Marlboro?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:25 pm. On the last day of the month, in Marlboro, sunrise is at 6:47 am and sunset at 6:33 pm EDT.

How long on average sun shines in September in Marlboro?

In September, the average sunshine duration in Marlboro, Vermont, is 8.6h.

What is the UV index reading in September in Marlboro?

In September, the average daily maximum UV index in Marlboro, Vermont, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Marlboro, VT

Average temperature in September - Marlboro, VT
  • Average high temperature in September: 70.2°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in September: 50.9°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 (15.1°F).

Average pressure in September
Marlboro, VT

Average pressure in September - Marlboro, VT
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Marlboro, VT

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

The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Marlboro, VT

Average humidity in September - Marlboro, VT
  • Average humidity in September: 79%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Marlboro, VT

Average rainfall in September - Marlboro, VT
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is November (0.87").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days in September
Marlboro, VT

Average rainfall days in September - Marlboro, VT
  • Average rainfall days in September: 6.8 days

The month with the highest number of rainy days is May (10 days).
The months with the least rainy days are January and February (4.3 days).

Average snowfall in September
Marlboro, VT

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

The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Marlboro, VT

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

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Marlboro, VT
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in September
Marlboro, VT

Average sunshine days in September - Marlboro, VT
  • Average sunshine days in September: 20.5 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is July (17.6 days).

Average UV index in September
Marlboro, VT

Average UV index in September - Marlboro, VT
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Marlboro, VT

Average cloud cover in September - Marlboro, VT
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Marlboro, VT

Average visibility in September - Marlboro, VT
  • Average visibility in September: 5mi

The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).

Marlboro, Vermont, USA

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