September weather forecast
Alexander, AR

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Weather in September

The first month of the autumn, September, is still a warm month in Alexander, Arkansas, with an average temperature varying between 65.1°F (18.4°C) and 85.6°F (29.8°C).

Temperature

Alexander, Arkansas, experiences an average high-temperature of a warm 85.6°F (29.8°C) in September, marking an insignificant shift from 91°F (32.8°C) in August. During September, the nighttime temperature in Alexander averages of 65.1°F (18.4°C).

Heat index

September's mean heat index is calculated to be a very hot 95°F (35°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

In Alexander, Arkansas, the average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 2.17" (55mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:43 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:54 pm CDT.

Sunshine

The average sunshine in September is 9.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The high-temperature, in September, in Alexander, records 85.6°F (29.8°C), while the low-temperature is 65.1°F (18.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is calculated to be 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 72%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 2.17" (55mm) of precipitation.

How many days does it rain in September?

In Alexander, during September, the rain falls for 12.8 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow in Alexander?

In Alexander, snow does not fall in April through October.

How many hours of daylight does Alexander have in September?

The average day length in September in Alexander is 12h and 23min.

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:43 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:54 pm CDT.

How long on average sun shines in September?

In Alexander, the average sunshine duration in September is 9.7h.

What is the UV index intensity in September?

In Alexander, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents 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
Alexander, AR

Average temperature in September - Alexander, AR
  • Average high temperature in September: 85.6°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (48.9°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).

Average pressure in September
Alexander, AR

Average pressure in September - Alexander, AR
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Alexander, AR

Average wind speed in September - Alexander, AR
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are February, March and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Alexander, AR

Average humidity in September - Alexander, AR
  • Average humidity in September: 72%

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Alexander, AR

Average rainfall in September - Alexander, AR
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in September
Alexander, AR

Average rainfall days in September - Alexander, AR
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in September
Alexander, AR

Average snowfall in September - Alexander, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Alexander, AR

Average snowfall days in September - Alexander, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.2 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
Alexander, AR

Average daylight in September / Average sunshine in September - Alexander, AR
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
Alexander, AR

Average sunshine days in September - Alexander, AR
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in September
Alexander, AR

Average UV index in September - Alexander, AR
  • 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, February, November and December (UV index 3).

Average cloud cover in September
Alexander, AR

Average cloud cover in September - Alexander, AR
  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in September
Alexander, AR

Average visibility in September - Alexander, AR
  • 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).

Alexander, Arkansas, USA

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