September weather forecast
Stephens, AR

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Weather in September

The first month of the autumn, September, is still a tropical month in Stephens, Arkansas, with an average temperature varying between 65.8°F (18.8°C) and 87.3°F (30.7°C).

Temperature

Stephens's transition into September involves a gentle shift in temperature, receding from a tropical 93.4°F (34.1°C) in August to a still hot 87.3°F (30.7°C). Stephens encounters an average low-temperature of 65.8°F (18.8°C) during September nights.

Heat index

The heat index for September is calculated to be a sweltering 98.6°F (37°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In September, the average relative humidity is 71%.

Rainfall

In September, in Stephens, the rain falls for 12.8 days. Throughout September, 2.83" (72mm) of precipitation is accumulated. In Stephens, during the entire year, the rain falls for 160.9 days and collects up to 39.61" (1006mm) of precipitation.

Snowfall

April through October and December are months without snowfall.

Daylight

In September, the average length of the day in Stephens is 12h and 22min.
On the first day of the month, sunrise is at 6:46 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:57 pm CDT.

Sunshine

The average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

How hot is it in Stephens in September?

In Stephens, 87.3°F (30.7°C) is the average high-temperature and 65.8°F (18.8°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 98.6°F (37°C).

What is the average humidity in September in Stephens?

In Stephens, Arkansas, the average relative humidity in September is 71%.

How much does it rain in Stephens in September?

In Stephens, during September, the rain falls for 12.8 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Stephens?

April through October and December are months without snowfall in Stephens, Arkansas.

What is the average length of the day in September in Stephens?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Stephens?

On the first day of September in Stephens, Arkansas, sunrise is at 6:46 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:57 pm CDT.

How long on average sun shines in September in Stephens?

The average sunshine duration in September is 9.3h.

How high is the UV index in September in Stephens?

In Stephens, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Stephens, AR

Average temperature in September - Stephens, AR
  • Average high temperature in September: 87.3°F

The warmest months (with the highest average high temperature) are July and August (93.4°F).
The month with the lowest average high temperature is January (51.8°F).

  • Average low temperature in September: 65.8°F

The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).

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Average pressure in September
Stephens, AR

Average pressure in September - Stephens, 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 (29.94"Hg).

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Average wind speed in September
Stephens, AR

Average wind speed in September - Stephens, AR
  • Average wind speed in September: 5mph

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
Stephens, AR

Average humidity in September - Stephens, AR
  • Average humidity in September: 71%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in September
Stephens, AR

Average rainfall in September - Stephens, AR
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is April (5.08").
The driest month (with the least rainfall) is November (2.36").

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Average rainfall days in September
Stephens, AR

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

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is October (10.3 days).

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Average snowfall in September
Stephens, AR

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

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").

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Average snowfall days in September
Stephens, AR

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

The month with the highest number of snowfall days is February (1.5 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
Stephens, AR

Average daylight in September / Average sunshine in September - Stephens, AR
  • 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 August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in September
Stephens, AR

Average sunshine days in September - Stephens, AR
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is February (13 days).

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Average UV index in September
Stephens, AR

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

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

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Average cloud cover in September
Stephens, AR

Average cloud cover in September - Stephens, AR
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Stephens, AR

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

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

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Stephens, Arkansas, USA

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