September weather forecast
Little Rock, AR

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Arkansas State Capital in Little Rock, Arkansas
Arkansas State Capital in Little Rock, Arkansas

Weather in September

September in Little Rock signifies the start of fall, wherein temperatures gradually subside from the summer highs. Notably, the temperature decreases from the August heights to settle between 65.1°F (18.4°C) and 85.3°F (29.6°C). The month continues to receive substantial sunlight, although not as much as in summer. Coincided with the decreased cloud coverage, the city experiences a drier air. September is a transitional month, gently escorting the city away from the intensity of summer.

Temperature

The average high-temperature shows a slight dip in September, from August's tropical 90.9°F (32.7°C) to a moderately hot 85.3°F (29.6°C). In Little Rock, the nighttime temperature averages to a comfortable 65.1°F (18.4°C) during September.

Heat index

The heat index in September is estimated at a hot 93.2°F (34°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.

Humidity

In Little Rock, the average relative humidity in September is 71%.

Rainfall

In Little Rock, during September, the rain falls for 10.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 133.5 rainfall days, and 18.94" (481mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

In Little Rock, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:54 pm CDT.

Sunshine

In Little Rock, the average sunshine in September is 9.8h.

UV index

The average daily maximum UV index in September in Little Rock is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

How hot does it get in September?

The high-temperature, in September, in Little Rock, is 85.3°F (29.6°C), while the low-temperature averages to 65.1°F (18.4°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 93.2°F (34°C).

What is the average humidity in September in Little Rock?

The average relative humidity in September is 71%.

How much does it rain in September?

In Little Rock, during September, the rain falls for 10.5 days and regularly aggregates up to 1.14" (29mm) of precipitation.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

In Little Rock, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:42 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:54 pm CDT.

How many hours of sunshine does Little Rock have in September?

In Little Rock, the average sunshine duration in September is 9.8h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Little Rock, AR

Average temperature in September - Little Rock, AR
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

Average pressure in September
Little Rock, AR

Average pressure in September - Little Rock, AR
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Little Rock, AR

Average wind speed in September - Little Rock, AR
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Little Rock, AR

Average humidity in September - Little Rock, AR
  • Average humidity in September: 71%

The months with the highest relative humidity are March and December (77%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Little Rock, AR

Average rainfall in September - Little Rock, AR
  • Average rainfall in September: 1.14"

The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days in September
Little Rock, AR

Average rainfall days in September - Little Rock, AR
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in September
Little Rock, AR

Average snowfall in September - Little Rock, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Little Rock, AR

Average snowfall days in September - Little Rock, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Little Rock, AR

Average daylight in September / Average sunshine in September - Little Rock, AR
  • Average daylight in September: 12h and 2min

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

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
Little Rock, AR

Average sunshine days in September - Little Rock, AR
  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Little Rock, AR

Average UV index in September - Little Rock, AR
  • Average UV index in September: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
Little Rock, AR

Average cloud cover in September - Little Rock, AR
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in September
Little Rock, AR

Average visibility in September - Little Rock, AR
  • 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).

Little Rock, Arkansas, USA

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