September weather forecast
Ackerman, MS

September

Weather in September

The first month of the autumn, September, is still a warm month in Ackerman, Mississippi, with an average temperature ranging between max 29.8°C and min 18.8°C.

Temperature

With September's arrival, Ackerman's weather records an average high-temperature of a warm 29.8°C, marking little difference from August's 32.6°C. Ackerman in September anticipates an average nighttime temperature of 18.8°C.

Heat index

For most parts of September, the heat index is computed to be a very hot 35°C. Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially vital to children. 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.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in September is 73%.

Rainfall

In Ackerman, during September, the rain falls for 13.5 days and regularly aggregates up to 67mm of precipitation. Throughout the year, in Ackerman, Mississippi, there are 163.9 rainfall days, and 928mm of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:31 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:42 pm CDT.

Sunshine

The average sunshine in September in Ackerman is 9.4h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Ensure safety - Sun damage prevention is strongly urged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?
In Ackerman, in September, the average high-temperature is 29.8°C, and the average low-temperature is 18.8°C. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 35°C.
What is the average humidity in September?
The average relative humidity in September is 73%.
How much does it rain in September?
In Ackerman, in September, during 13.5 rainfall days, 67mm of precipitation is typically accumulated.
When it does not snow?
In Ackerman, snow does not fall in April through October.
What is the average length of the day in September?
The average day length in September is 12h and 22min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:42 pm CDT.
How many hours of sunshine does Ackerman have in September?
In September, the average sunshine duration is 9.4h.
How high is the UV index in September?
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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 - Ackerman, MS
Average temperature in September
Ackerman, MS
  • Average high temperature in September: 29.8°C

The warmest month (with the highest average high temperature) is July (32.8°C).
The month with the lowest average high temperature is January (10.8°C).

  • Average low temperature in September: 18.8°C

The month with the highest average low temperature is July (21.8°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).

Average pressure in September - Ackerman, MS
Average pressure in September
Ackerman, MS
  • Average pressure in September: 1015.8mbar

The month with the highest atmospheric pressure is January (1021.6mbar).
The month with the lowest atmospheric pressure is June (1014.6mbar).

Average wind speed in September - Ackerman, MS
Average wind speed in September
Ackerman, MS
  • Average wind speed in September: 8.4km/h

The windiest month (with the highest average wind speed) is April (12.1km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).

Average humidity in September - Ackerman, MS
Average humidity in September
Ackerman, MS
  • Average humidity in September: 73%

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

Average rainfall in September - Ackerman, MS
Average rainfall in September
Ackerman, MS
  • Average rainfall in September: 67mm

The wettest month (with the highest rainfall) is February (94mm).
The driest month (with the least rainfall) is November (53mm).

Average rainfall days in September - Ackerman, MS
Average rainfall days in September
Ackerman, MS
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (8.9 days).

Average snowfall in September - Ackerman, MS
Average snowfall in September
Ackerman, MS
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September - Ackerman, MS
Average snowfall days in September
Ackerman, MS
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (1.3 days).
The 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 - Ackerman, MS
Average daylight in September /
Average sunshine in September
Ackerman, MS
  • Average daylight in September: 12h and 2min

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

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September - Ackerman, MS
Average sunshine days in September
Ackerman, MS
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (9.3 days).

Average UV index in September - Ackerman, MS
Average UV index in September
Ackerman, MS
  • Average UV index in September: 5

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

Average cloud cover in September - Ackerman, MS
Average cloud cover in September
Ackerman, MS
  • Average cloud cover in September: 28

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in September - Ackerman, MS
Average visibility in September
Ackerman, MS
  • Average visibility in September: 9km

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

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