September weather forecast
Columbus, AR

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Weather in September

The first month of the autumn, September, is still a hot month in Columbus, Arkansas, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 86.9°F (30.5°C).

Temperature

September marks a gentle change in average high-temperature, declining from August's hot 93°F (33.9°C) to a still tropical 86.9°F (30.5°C). During the month of September, Columbus anticipates a mean low-temperature of 65.7°F (18.7°C).

Heat index

Throughout September, the heat index is calculated to be a fiery hot 96.8°F (36°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 70%.

Rainfall

The month with the least rainfall in Columbus is September, when the rain falls for 11.6 days and typically collects 1.69" (43mm) of precipitation.

Snowfall

April through December are months without snowfall in Columbus, Arkansas.

Daylight

In September, the average length of the day in Columbus is 12h and 22min.
On the first day of September, sunrise is at 6:49 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:00 pm CDT.

Sunshine

In Columbus, the average sunshine in September is 9.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 6 in September transforms into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot does it get in Columbus in September?

An average high-temperature, in September, in Columbus, is 86.9°F (30.5°C) and the average low-temperature is 65.7°F (18.7°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 96.8°F (36°C).

What is the least humid month in Columbus?

August and September, with an average relative humidity of 70%, are the least humid months in Columbus.

What is the average humidity in September in Columbus?

In Columbus, the average relative humidity in September is 70%.

What is the driest month in Columbus?

The month with the least rainfall in Columbus, Arkansas, is September, when the rain falls for 11.6 days and typically collects 1.69" (43mm) of precipitation.

How many days does it rain in September in Columbus?

In Columbus, in September, during 11.6 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow in Columbus?

In Columbus, Arkansas, snow does not fall in April through December.

How many hours of daylight does Columbus have in September?

In Columbus, the average day length in September is 12h and 22min.

What time are sunrise and sunset in September in Columbus?

On the first day of September in Columbus, sunrise is at 6:49 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:00 pm CDT.

How many hours of sunshine does Columbus have in September?

In Columbus, Arkansas, the average sunshine duration in September is 9.6h.

What is the UV index reading in September in Columbus?

In Columbus, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat 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
Columbus, AR

Average temperature in September - Columbus, AR
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (50.9°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

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Average pressure in September
Columbus, AR

Average pressure in September - Columbus, AR
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Columbus, AR

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

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Columbus, AR

Average humidity in September - Columbus, AR
  • Average humidity in September: 70%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and September (70%).

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Average rainfall in September
Columbus, AR

Average rainfall in September - Columbus, AR
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in September
Columbus, AR

Average rainfall days in September - Columbus, AR
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is January (10.4 days).

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Average snowfall in September
Columbus, AR

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

The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Columbus, AR

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

The month with the highest number of snowfall days is February (1.3 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
Columbus, AR

Average daylight in September / Average sunshine in September - Columbus, 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: 10h and 0min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Columbus, AR

Average sunshine days in September - Columbus, AR
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is February (13.3 days).

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Average UV index in September
Columbus, AR

Average UV index in September - Columbus, AR
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Columbus, AR

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

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in September
Columbus, AR

Average visibility in September - Columbus, AR
  • Average visibility in September: 6mi

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

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Columbus, Arkansas, USA

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