September weather forecast
Leighton, LA

Share

Weather in September

September, the first month of the autumn in Leighton, is also a hot month, with an average temperature fluctuating between 72.1°F (22.3°C) and 86.7°F (30.4°C).

Temperature

The commencement of September brings an average high-temperature of a still tropical 86.7°F (30.4°C), marking an inconsequential divergence from August. Leighton records an average nighttime low of 72.1°F (22.3°C) in September.

Heat index

Throughout September, the heat index is computed to be a fiery hot 102.2°F (39°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

July through September and December, with an average relative humidity of 79%, are the most humid months.

Rainfall

In Leighton, in September, it is raining for 19.1 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 166.9 rainfall days, and 25.39" (645mm) of precipitation is accumulated.

Snowfall

In Leighton, snow does not fall in February through November.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 6:41 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:56 am and sunset at 6:49 pm CDT.

Sunshine

In Leighton, the average sunshine in September is 10.3h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Leighton?

In Leighton, 86.7°F (30.4°C) is the average high-temperature and 72.1°F (22.3°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 102.2°F (39°C).

What is the most humid month?

The months with the highest humidity are July through September and December, with an average relative humidity of 79%.

What is the average humidity in September?

In September, the average relative humidity is 79%.

How much does it rain in September?

In Leighton, during September, the rain falls for 19.1 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow?

February through November are months without snowfall in Leighton.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:41 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:49 pm CDT.

How long on average sun shines in September?

In Leighton, the average sunshine duration in September is 10.3h.

What is the month with the highest UV index?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Leighton, LA

Average temperature in September - Leighton, LA
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (60.8°F).

  • Average low temperature in September: 72.1°F

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (46.2°F).

Average pressure in September
Leighton, LA

Average pressure in September - Leighton, LA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in September
Leighton, LA

Average wind speed in September - Leighton, LA
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are February and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in September
Leighton, LA

Average humidity in September - Leighton, LA
  • Average humidity in September: 79%

The months with the highest relative humidity are July, August, September and December (79%).
The month with the lowest relative humidity is October (74%).

Average rainfall in September
Leighton, LA

Average rainfall in September - Leighton, LA
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is July (4.61").
The driest month (with the least rainfall) is November (1.14").

Average rainfall days in September
Leighton, LA

Average rainfall days in September - Leighton, LA
  • Average rainfall days in September: 19.1 days

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (7.2 days).

Average snowfall days in September
Leighton, LA

Average snowfall days in September - Leighton, LA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in September /
Average sunshine in September
Leighton, LA

Average daylight in September / Average sunshine in September - Leighton, LA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in September
Leighton, LA

Average sunshine days in September - Leighton, LA
  • Average sunshine days in September: 8.2 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in September
Leighton, LA

Average UV index in September - Leighton, LA
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in September
Leighton, LA

Average cloud cover in September - Leighton, LA
  • Average cloud cover in September: 26

The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).

Average visibility in September
Leighton, LA

Average visibility in September - Leighton, LA
  • 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).

Leighton, Louisiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location