September weather forecast and climate
Arlington, KY

September, the first month of the autumn, in Arlington, is still a warm month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 81.7°F (27.6°C).

Temperature

In Arlington, the average high-temperature in September is practically the same as in August - a moderately hot 81.7°F (27.6°C). In September, the average low-temperature is 62.2°F (16.8°C).

Heat index

The average heat index is calculated to a hot 86.2°F (30.1°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In September, the average relative humidity is 72%.

Rainfall

The month with the least rainfall is September when the rain falls for 11.8 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

In Arlington, Kentucky, snow does not fall in April through October.

Daylight

In Arlington, the average length of the day in September is 12.4h.

Sunshine

The average sunshine in September is 9.5h.

UV index

In Arlington, Kentucky, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 5 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Arlington?

In Arlington, Kentucky, in September, the average high-temperature is 81.7°F (27.6°C), and the average low-temperature is 62.2°F (16.8°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines relative humidity and air temperature, is appraised at 86.2°F (30.1°C).

What is the average humidity in September in Arlington?

The average relative humidity in September is 72%.

How much does it rain in Arlington in September?

In Arlington, Kentucky, in September, it is raining for 11.8 days, with typically 1.5" (38mm) of accumulated precipitation.

What is the driest month in Arlington?

The month with the least rainfall in Arlington, Kentucky, is September when the rain falls for 11.8 days and typically collects 1.5" (38mm) of precipitation.

When it does not snow in Arlington?

April through October are months without snowfall.

What is the average length of the day in September in Arlington?

In September, the average length of the day is 12.4h.

How many hours of sunshine does Arlington have in September?

In September, the average sunshine in Arlington is 9.5h.

What is the UV index intensity in September in Arlington?

In Arlington, Kentucky, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Arlington, 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 (42.6°F).

  • Average low temperature in September: 62.2°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 (29.1°F).

Average pressure in September - Arlington, KY
  • Average pressure in September: 30.02"

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

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

The windiest months (with the highest average wind speed) are January, February, March and April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in September - Arlington, KY
  • Average humidity in September: 72%

Months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September - Arlington, KY
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in September - Arlington, KY
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (10.2 days).

Average snowfall in September - Arlington, KY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.73").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September - Arlington, KY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Arlington, KY
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9.5h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in September - Arlington, KY
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is April (12.2 days).

Average UV index in September - Arlington, KY
  • Average UV index in September: 5

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

Average cloud cover in September - Arlington, KY
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in September - Arlington, KY
  • Average visibility in September: 6mi

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