September weather forecast
Morrisville, VT

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Weather in September

September, the first month of the autumn in Morrisville, is still a comfortable month, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 47.8°F (8.8°C).

Temperature

With the onset of September, Morrisville's climate undergoes a slight change as the average high-temperature moves from a moderately hot 74.8°F (23.8°C) in August to a comfortable 67.5°F (19.7°C). During September, the temperature is averaged to a low of 47.8°F (8.8°C) at night.

Humidity

In Morrisville, the average relative humidity in September is 81%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.4 days and typically collects 2.17" (55mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Morrisville, the average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 6:13 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 Morrisville, Vermont, the average sunshine in September is 8h.

UV index

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: In September, the maximum UV index of 3 translates into these guidelines:
Take precautions - Protection against sun damage is advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Morrisville in September?

Morrisville in September has an average high-temperature of 67.5°F (19.7°C) and an average low-temperature of 47.8°F (8.8°C).

What is the average humidity in September?

In September, the average relative humidity is 81%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 2.17" (55mm) of precipitation.

How many days does it rain in September?

In Morrisville, during September, the rain falls for 12.4 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow?

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

Does it snow in September?

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

What is the average length of the day in September?

In September, the average day length is 12h and 31min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:13 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.

How long on average sun shines in September?

In September, the average sunshine duration is 8h.

What is the UV index intensity in September?

In Morrisville, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Morrisville, VT

Average temperature in September - Morrisville, VT
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in September: 47.8°F

The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in September
Morrisville, VT

Average pressure in September - Morrisville, 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
Morrisville, VT

Average wind speed in September - Morrisville, VT
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Morrisville, VT

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

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (77%).

Average rainfall in September
Morrisville, VT

Average rainfall in September - Morrisville, VT
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in September
Morrisville, VT

Average rainfall days in September - Morrisville, VT
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in September
Morrisville, VT

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

The month with the highest snowfall is February (14.29").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Morrisville, VT

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

The month with the highest number of snowfall days is January (23.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Morrisville, 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 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).

Average sunshine days in September
Morrisville, VT

Average sunshine days in September - Morrisville, 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 (5.3 days).

Average UV index in September
Morrisville, VT

Average UV index in September - Morrisville, 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).

Average cloud cover in September
Morrisville, VT

Average cloud cover in September - Morrisville, VT
  • Average cloud cover in September: 42

The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in September
Morrisville, VT

Average visibility in September - Morrisville, 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).

Morrisville, Vermont, USA

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