September weather forecast
Vienna, WV

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Weather in September

As the calendar flips to September, Vienna prepares to welcome autumn and bid adieu to summer. The days start getting noticeably shorter, the sunlight softer, and the leaves begin their transition into an array of warm hues. The mercury initiates its decline from 77.9°F (25.5°C) with a perceptible nip in the air felt especially in the evenings. The climate seems perfect for hikes, long drives, or simply sipping on hot beverages while relishing the colorful transformation of the town.

Temperature

The onset of September in Vienna, West Virginia, brings a small shift in high-temperatures, falling from 84.2°F (29°C) in August to a still warm 77.9°F (25.5°C). During the month of September, the temperature falls to an average of 56.7°F (13.7°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

September is the month with the least rainfall in Vienna. Rain falls for 12.5 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day in Vienna is 12h and 26min.
On the first day of September in Vienna, sunrise is at 6:55 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:09 pm EDT.

Sunshine

In Vienna, West Virginia, the average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September in Vienna is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 suggests this advice:
Take precautions - Protection against sun damage is advised. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

What are the temperatures in Vienna in September?

In September, the average high-temperature and low-temperature are 77.9°F (25.5°C) and 56.7°F (13.7°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in August is appraised at 93.2°F (34°C).

What is the average humidity in September in Vienna?

In Vienna, the average relative humidity in September is 77%.

What is the driest month in Vienna?

The month with the least rainfall in Vienna, West Virginia, is September, when the rain falls for 12.5 days and typically collects 1.89" (48mm) of precipitation.

How much does it rain in Vienna in September?

In Vienna, West Virginia, in September, during 12.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow in Vienna?

In Vienna, snow does not fall in May through September.

Does it snow in Vienna in September?

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

How many hours of daylight does Vienna have in September?

In Vienna, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Vienna?

In September, on the first day of the month, sunrise is at 6:55 am and sunset at 7:56 pm. On the last day of the month, in Vienna, West Virginia, sunrise is at 7:22 am and sunset at 7:09 pm EDT.

How long on average sun shines in September in Vienna?

In Vienna, West Virginia, the average sunshine duration in September is 8.4h.

How high is the UV index in September in Vienna?

The average daily maximum UV index in September in Vienna, West Virginia, is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Vienna, WV

Average temperature in September - Vienna, WV
  • Average high temperature in September: 77.9°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in September
Vienna, WV

Average pressure in September - Vienna, WV
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Vienna, WV

Average wind speed in September - Vienna, WV
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in September
Vienna, WV

Average humidity in September - Vienna, WV
  • Average humidity in September: 77%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Vienna, WV

Average rainfall in September - Vienna, WV
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in September
Vienna, WV

Average rainfall days in September - Vienna, WV
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is November (10.4 days).

Average snowfall in September
Vienna, WV

Average snowfall in September - Vienna, WV
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Vienna, WV

Average snowfall days in September - Vienna, WV
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Vienna, WV

Average daylight in September / Average sunshine in September - Vienna, WV
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in September
Vienna, WV

Average sunshine days in September - Vienna, WV
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is February (9.2 days).

Average UV index in September
Vienna, WV

Average UV index in September - Vienna, WV
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Vienna, WV

Average cloud cover in September - Vienna, WV
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in September
Vienna, WV

Average visibility in September - Vienna, WV
  • 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).

Vienna, West Virginia, USA

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