September weather forecast and climate
Little Rock, AR

The full front view of Arkansas State Capital in Little Rock, Arkansas
The full front view of Arkansas State Capital in Little Rock, Arkansas
September, the first month of the autumn, in Little Rock, is still a warm month, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 85.3°F (29.6°C).

Temperature

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

Heat index

In September, the average heat index is appraised at 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. 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 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, pregnancy, wind, and clothing affect individual temperature impact. 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 especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity is 71%.

Rainfall

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

Snowfall

April through November are months without snowfall in Little Rock.

Daylight

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

Sunshine

In September, the average sunshine is 9.8h.

UV index

In Little Rock, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. 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.

What is the temperature in September in Little Rock?

In September, in Little Rock, the average high-temperature is 85.3°F (29.6°C), and the average low-temperature is 65.1°F (18.4°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that combines air temperature and relative humidity, is estimated at 93.7°F (34.3°C).

What is the average humidity in September in Little Rock?

The average relative humidity in September in Little Rock is 71%.

How much does it rain in Little Rock in September?

In Little Rock, in September, it is raining for 10.5 days, with typically 1.14" (29mm) of accumulated precipitation.

When it does not snow in Little Rock?

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

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

In Little Rock, Arkansas, the average length of the day in September is 12.4h.

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

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

What is the UV index reading in September in Little Rock?

In September, the average daily maximum UV index in Little Rock is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV rays.
Average temperature in September - Little Rock, AR
  • Average high temperature in September: 29.6°C

The warmest month (with the highest average high temperature) is July (33.3°C).
The month with the lowest average high temperature is January (9.3°C).

  • Average low temperature in September: 18.4°C

The month with the highest average low temperature is July (22.5°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).

Average pressure in September - Little Rock, AR
  • Average pressure in September: 1016mbar

The month with the highest atmospheric pressure is January (1021.7mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).

Average wind speed in September - Little Rock, AR
  • Average wind speed in September: 8.7km/h

The windiest month (with the highest average wind speed) is February (13.2km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).

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

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: 29mm

The wettest month (with the highest rainfall) is April (57mm).
The driest month (with the least rainfall) is January (27mm).

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: 0mm

The month with the highest snowfall is February (13mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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).
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: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 9.8h

The month with the most sunshine is June (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 5.2h).

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: 6

Months with the highest UV index are June and July (UV index 7).
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: 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: 9km

The month with the highest visibility is June (10km).
Months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).