September weather forecast
Clayton, LA

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Weather in September

September, the first month of the autumn in Clayton, is still a tropical month, with an average temperature varying between 68.2°F (20.1°C) and 87.3°F (30.7°C).

Temperature

On the advent of September, Clayton's average high-temperature exhibits a minor adjustment to a still tropical 87.3°F (30.7°C) from August's 90.7°F (32.6°C). Nighttime temperature dips to a mean of 68.2°F (20.1°C) during September.

Heat index

In September, the heat index is calculated to be a torrid 102.2°F (39°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in September in Clayton is 76%.

Rainfall

September is the month with the least rainfall in Clayton. Rain falls for 11.8 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:29 pm. On the last day of September, in Clayton, Louisiana, sunrise is at 6:59 am and sunset at 6:51 pm CDT.

Sunshine

The average sunshine in September is 9.6h.

UV index

In Clayton, 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 for the average person.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. 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. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

Is it hot in Clayton during September?

The high-temperature in Clayton during September is 87.3°F (30.7°C) and the low-temperature is 68.2°F (20.1°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 102.2°F (39°C).

What is the average humidity in September in Clayton?

In September, the average relative humidity in Clayton is 76%.

What is the driest month in Clayton?

September is the month with the least rainfall in Clayton, Louisiana. Rain falls for 11.8 days and accumulates 1.97" (50mm) of precipitation.

How much does it rain in Clayton in September?

In Clayton, during September, the rain falls for 11.8 days and regularly aggregates up to 1.97" (50mm) of precipitation.

When it does not snow in Clayton?

In Clayton, Louisiana, snow does not fall in April through November.

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

In September, the average day length in Clayton is 12h and 21min.

When is the sunrise / sunset in September in Clayton?

On the first day of September, sunrise is at 6:42 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:51 pm CDT.

How many hours of sunshine does Clayton have in September?

The average sunshine duration in September in Clayton, Louisiana, is 9.6h.

How high is the UV index in September in Clayton?

The average daily maximum UV index in September in Clayton is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Clayton, LA

Average temperature in September - Clayton, LA
  • Average high temperature in September: 87.3°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (55.4°F).

  • Average low temperature in September: 68.2°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).

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Average pressure in September
Clayton, LA

Average pressure in September - Clayton, LA
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).

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Average wind speed in September
Clayton, LA

Average wind speed in September - Clayton, LA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).

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Average humidity in September
Clayton, LA

Average humidity in September - Clayton, LA
  • Average humidity in September: 76%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Clayton, LA

Average rainfall in September - Clayton, LA
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is January (3.39").
The driest month (with the least rainfall) is September (1.97").

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Average rainfall days in September
Clayton, LA

Average rainfall days in September - Clayton, LA
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is August (15.4 days).
The month with the least rainy days is October (8.6 days).

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Average snowfall in September
Clayton, LA

Average snowfall in September - Clayton, LA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.47").
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
Clayton, LA

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

The month with the highest number of snowfall days is January (0.8 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
Clayton, LA

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Clayton, LA

Average sunshine days in September - Clayton, LA
  • Average sunshine days in September: 16 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is February (12.3 days).

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Average UV index in September
Clayton, LA

Average UV index in September - Clayton, LA
  • Average UV index in September: 6

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

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Average cloud cover in September
Clayton, LA

Average cloud cover in September - Clayton, LA
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in September
Clayton, LA

Average visibility in September - Clayton, LA
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).

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Clayton, Louisiana, USA

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