September weather forecast
Jackson, LA

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Weather in September

The first month of the autumn, September, is still a tropical month in Jackson, Louisiana, with temperature in the range of an average low of 68.9°F (20.5°C) and an average high of 87.6°F (30.9°C).

Temperature

The unfolding of September shows an average high-temperature of a still hot 87.6°F (30.9°C), indicating a slight variance from August's 91.6°F (33.1°C). During the nights in September, the temperature averages to a pleasant 68.9°F (20.5°C).

Heat index

September's average heat index is evaluated at a scorching 104°F (40°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 highly critical to babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In Jackson, the average relative humidity in September is 79%.

Rainfall

In Jackson, in September, it is raining for 17.3 days, with typically 2.72" (69mm) of accumulated precipitation. In Jackson, during the entire year, the rain falls for 179.3 days and collects up to 37.24" (946mm) of precipitation.

Snowfall

February through November are months without snowfall.

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 7:27 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:50 pm CDT.

Sunshine

The average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 during September translates into the following guidance:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot is September?

The high-temperature, in September, in Jackson, is 87.6°F (30.9°C), while the low-temperature averages to 68.9°F (20.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 104°F (40°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

How many days does it rain in September?

In Jackson, in September, it is raining for 17.3 days, with typically 2.72" (69mm) of accumulated precipitation.

When it does not snow?

February through November are months without snowfall.

What is the average length of the day in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:41 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Jackson have in September?

In September, the average sunshine duration is 9.4h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high hazard to health 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
Jackson, LA

Average temperature in September - Jackson, LA
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (91.6°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.7°F).

Average pressure in September
Jackson, LA

Average pressure in September - Jackson, 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).

Average wind speed in September
Jackson, LA

Average wind speed in September - Jackson, LA
  • Average wind speed in September: 4.5mph

The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).

Average humidity in September
Jackson, LA

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

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Jackson, LA

Average rainfall in September - Jackson, LA
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is November (2.2").

Average rainfall days in September
Jackson, LA

Average rainfall days in September - Jackson, LA
  • Average rainfall days in September: 17.3 days

The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (9.9 days).

Average snowfall in September
Jackson, LA

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

The month with the highest snowfall is January (0.24").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Jackson, LA

Average snowfall days in September - Jackson, 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 April, May, June, July, August, September, October and November (0 days).

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

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

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

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Jackson, LA

Average sunshine days in September - Jackson, LA
  • Average sunshine days in September: 10.6 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is August (8.4 days).

Average UV index in September
Jackson, LA

Average UV index in September - Jackson, LA
  • 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 and December (UV index 3).

Average cloud cover in September
Jackson, LA

Average cloud cover in September - Jackson, LA
  • Average cloud cover in September: 34

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in September
Jackson, LA

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

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

Jackson, Louisiana, USA

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