September weather forecast
West Viola, KY

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Weather in September

September, the first month of the autumn in West Viola, is also a moderately hot month, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 62.4°F (16.9°C).

Temperature

September's advent denotes a minor fluctuation in the average high-temperature to a moderately hot 81.7°F (27.6°C) from August's 86.7°F (30.4°C). West Viola reports an average nighttime low-temperature of 62.4°F (16.9°C) in September.

Heat index

The average heat index in September is calculated to be a tropical 86°F (30°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.

Humidity

In West Viola, the average relative humidity in September is 72%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13.6 days and typically collects 1.97" (50mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 24min.
On the first day of the month, sunrise is at 6:26 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:49 am and sunset at 6:39 pm CDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What are the temperatures in September?

In September, in West Viola, the average high-temperature is 81.7°F (27.6°C), and the average low-temperature is 62.4°F (16.9°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 86°F (30°C).

What is the average humidity in September?

In West Viola, Kentucky, the average relative humidity in September is 72%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.6 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in September?

In West Viola, in September, during 13.6 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

In West Viola, snow does not fall in May through October.

What is the average length of the day in September?

The average day length in September is 12h and 24min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:26 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 6:39 pm CDT.

How many hours of sunshine does West Viola have in September?

In September, the average sunshine duration is 9.5h.

How high is the UV index in September?

The average daily maximum UV index in September in West Viola is 5. A UV Index 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
West Viola, KY

Average temperature in September - West Viola, KY
  • Average high temperature in September: 81.7°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
West Viola, KY

Average pressure in September - West Viola, KY
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
West Viola, KY

Average wind speed in September - West Viola, KY
  • Average wind speed in September: 6.3mph

The windiest months (with the highest average wind speed) are February and April (9mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in September
West Viola, KY

Average humidity in September - West Viola, KY
  • Average humidity in September: 72%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
West Viola, KY

Average rainfall in September - West Viola, KY
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is April (4.69").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in September
West Viola, KY

Average rainfall days in September - West Viola, KY
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is November (10.7 days).

Average snowfall in September
West Viola, KY

Average snowfall in September - West Viola, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
West Viola, KY

Average snowfall days in September - West Viola, KY
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
West Viola, KY

Average daylight in September / Average sunshine in September - West Viola, KY
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in September
West Viola, KY

Average sunshine days in September - West Viola, KY
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in September
West Viola, KY

Average UV index in September - West Viola, KY
  • Average UV index in September: 5

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

Average cloud cover in September
West Viola, KY

Average cloud cover in September - West Viola, KY
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 27).

Average visibility in September
West Viola, KY

Average visibility in September - West Viola, KY
  • Average visibility in September: 6mi

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

West Viola, Kentucky, USA

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