September weather forecast
Jackson, AL

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Weather in September

September, the first month of the autumn in Jackson, is still a tropical month, with an average temperature varying between 88.5°F (31.4°C) and 68°F (20°C).

Temperature

Jackson experiences a subtle adjustment in high-temperatures to a still hot 88.5°F (31.4°C) with the onset of September, maintaining near parity with August's 92.1°F (33.4°C). An average minimum temperature of 68°F (20°C) marks the month of September.

Heat index

The heat index for September is evaluated at a blisteringly hot 104°F (40°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
The heat index's values are generally associated with conditions in shade and light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Jackson, the average relative humidity in September is 75%.

Rainfall

In Jackson, in September, it is raining for 16.5 days, with typically 2.4" (61mm) of accumulated precipitation. In Jackson, during the entire year, the rain falls for 173.9 days and collects up to 35.63" (905mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of September, sunrise is at 6:27 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:37 pm CDT.

Sunshine

In September, the average sunshine in Jackson is 8.8h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

How hot does it get in September?

The average high-temperature, in September, in Jackson, is 88.5°F (31.4°C), while the average low-temperature is 68°F (20°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 104°F (40°C).

What is the average humidity in September?

In Jackson, Alabama, the average relative humidity in September is 75%.

How much does it rain in September?

In Jackson, in September, it is raining for 16.5 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow?

In Jackson, snow does not fall in April through November.

What is the average length of the day in September?

The average day length in September is 12h and 21min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:27 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:37 pm CDT.

How many hours of sunshine does Jackson have in September?

The average sunshine duration in September is 8.8h.

How high is the UV index in September in Jackson?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
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, AL

Average temperature in September - Jackson, AL
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68°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 (38.8°F).

Average pressure in September
Jackson, AL

Average pressure in September - Jackson, AL
  • Average pressure in September: 29.98"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
Jackson, AL

Average wind speed in September - Jackson, AL
  • Average wind speed in September: 4.4mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).

Average humidity in September
Jackson, AL

Average humidity in September - Jackson, AL
  • Average humidity in September: 75%

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Jackson, AL

Average rainfall in September - Jackson, AL
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is November (2.05").

Average rainfall days in September
Jackson, AL

Average rainfall days in September - Jackson, AL
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is July (24.7 days).
The month with the least rainy days is November (8 days).

Average snowfall in September
Jackson, AL

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

The month with the highest snowfall is January (0.16").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Jackson, AL

Average snowfall days in September - Jackson, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.5 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, AL

Average daylight in September / Average sunshine in September - Jackson, AL
  • 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: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in September
Jackson, AL

Average sunshine days in September - Jackson, AL
  • Average sunshine days in September: 11.5 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (4.4 days).

Average UV index in September
Jackson, AL

Average UV index in September - Jackson, AL
  • 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).

Average cloud cover in September
Jackson, AL

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

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 31).

Average visibility in September
Jackson, AL

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

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

Jackson, Alabama, USA

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