September weather forecast
Westminster, VT

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Weather in September

September, the first month of the autumn in Westminster, is also an agreeable month, with an average temperature fluctuating between 70.5°F (21.4°C) and 50.4°F (10.2°C).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's warm 77.9°F (25.5°C) to an agreeable 70.5°F (21.4°C). During September, Westminster witnesses a consistent average low-temperature of 50.4°F (10.2°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

In Westminster, in September, during 9.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 113.5 rainfall days, and 16.77" (426mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Westminster, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:15 am and sunset at 7:24 pm. On the last day of September, sunrise is at 6:46 am and sunset at 6:32 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 4 during September leads to these advisories:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What are September temperatures?

The average high-temperature and low-temperature during September are 70.5°F (21.4°C) and 50.4°F (10.2°C) respectively.

What is the average humidity in September?

The average relative humidity in September in Westminster is 78%.

How much does it rain in September?

In Westminster, during September, the rain falls for 9.5 days and regularly aggregates up to 1.34" (34mm) of precipitation.

When it does not snow?

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

Does it snow in September?

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

How many hours of daylight does Westminster have in September?

The average day length in September is 12h and 29min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:32 pm EDT.

How many hours of sunshine does Westminster have in September?

The average sunshine duration in September is 8.6h.

What is the UV index reading in September?

In Westminster, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Westminster, VT

Average temperature in September - Westminster, VT
  • Average high temperature in September: 70.5°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 (27.5°F).

  • Average low temperature in September: 50.4°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

Average pressure in September
Westminster, VT

Average pressure in September - Westminster, VT
  • Average pressure in September: 30.05"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
Westminster, VT

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

The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Westminster, VT

Average humidity in September - Westminster, VT
  • Average humidity in September: 78%

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

Average rainfall in September
Westminster, VT

Average rainfall in September - Westminster, VT
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is October (1.77").
The driest months (with the least rainfall) are January and March (1.06").

Average rainfall days in September
Westminster, VT

Average rainfall days in September - Westminster, VT
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in September
Westminster, VT

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

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Westminster, VT

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

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Westminster, 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
Westminster, VT

Average sunshine days in September - Westminster, VT
  • Average sunshine days in September: 18.2 days

The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are April and June (16 days).

Average UV index in September
Westminster, VT

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

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, February, March, October, November and December (UV index 2).

Average cloud cover in September
Westminster, VT

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Westminster, VT

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

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

Westminster, Vermont, USA

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