September weather forecast
Little Rock, AR

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

Weather in September

September, the first month of the autumn in Little Rock, is also a moderately hot month, with an average temperature fluctuating between 65.1°F (18.4°C) and 85.3°F (29.6°C).

Temperature

In Little Rock, the average high-temperature in September slightly decreases from a hot 90.9°F (32.7°C) in August to a moderately hot 85.3°F (29.6°C). In September, the average low-temperature is 65.1°F (18.4°C).

Heat index

In September, the average heat index is calculated to be a hot 93.7°F (34.3°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values 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 a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, metabolic differences, differences in body mass, height, and shape). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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 Little Rock, Arkansas, the average relative humidity in September is 71%.

Rainfall

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

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 September, 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.

Sunshine

The average sunshine in September in Little Rock is 9.8h.

UV index

In Little Rock, Arkansas, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.
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FAQ

What is the temperature in September in Little Rock?

The average high-temperature, in September, is 85.3°F (29.6°C), while the average low-temperature is 65.1°F (18.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 93.7°F (34.3°C).

What is the average humidity in September in Little Rock?

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

How many days does it rain in September in Little Rock?

In September, in Little Rock, the rain falls for 10.5 days. Throughout September, 1.14" (29mm) of precipitation is accumulated.

When it does not snow in Little Rock?

In Little Rock, Arkansas, snow does not fall in April through November.

What is the average length of the day in September in Little Rock?

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

When are sunrise and sunset in September in Little Rock?

On the first day of September in Little Rock, 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 long on average sun shines in September in Little Rock?

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

How high is the UV index in September in Little Rock?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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 23min

The month with the longest days is June (Average daylight: 14h and 27min).
The month with the shortest days is December (Average daylight: 9h and 52min).

  • Average sunshine in September: 9h and 48min

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).

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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).

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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).

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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).

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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).

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