September weather forecast
Dermott, AR

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Weather in September

September, the first month of the autumn in Dermott, is still a warm month, with an average temperature ranging between min 67.3°F (19.6°C) and max 85.6°F (29.8°C).

Temperature

September welcomes an average high-temperature of a warm 85.6°F (29.8°C), not much different from the preceding month. Dermott usually reports an average low-temperature of 67.3°F (19.6°C) during the month of September.

Heat index

The heat index value during September is calculated to be a torrid 95°F (35°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. 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. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In September, the average relative humidity is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 12 days and accumulates 2.13" (54mm) of precipitation.

Snowfall

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

Daylight

In Dermott, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:51 pm CDT.

Sunshine

The average sunshine in September is 9.7h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

Is it hot in Dermott during September?

The high-temperature, in September, in Dermott, is 85.6°F (29.8°C), while the low-temperature averages to 67.3°F (19.6°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in September is calculated to be 95°F (35°C).

What is the average humidity in September in Dermott?

The average relative humidity in September in Dermott, Arkansas, is 72%.

What is the driest month in Dermott?

The month with the least rainfall is September, when the rain falls for 12 days and typically collects 2.13" (54mm) of precipitation.

How much does it rain in Dermott in September?

In Dermott, in September, it is raining for 12 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow in Dermott?

April through November are months without snowfall in Dermott.

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

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

When is the sunrise / sunset in September in Dermott?

In September, on the first day of the month, sunrise is at 6:40 am and sunset at 7:30 pm. On the last day of the month, in Dermott, Arkansas, sunrise is at 6:59 am and sunset at 6:51 pm CDT.

How long on average sun shines in September in Dermott?

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

How high is the UV index in September in Dermott?

In September, the average daily maximum UV index is 6. A UV Index reading 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
Dermott, AR

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

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in September: 67.3°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).

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Average pressure in September
Dermott, AR

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in September
Dermott, AR

Average wind speed in September - Dermott, AR
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in September
Dermott, AR

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

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Dermott, AR

Average rainfall in September - Dermott, AR
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (2.13").

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Average rainfall days in September
Dermott, AR

Average rainfall days in September - Dermott, AR
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (8.9 days).

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Average snowfall in September
Dermott, AR

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

The month with the highest snowfall is February (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Dermott, AR

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

The month with the highest number of snowfall days is February (1.1 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
Dermott, AR

Average daylight in September / Average sunshine in September - Dermott, 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 4min

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 42min).

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Average sunshine days in September
Dermott, AR

Average sunshine days in September - Dermott, AR
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (13.1 days).

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Average UV index in September
Dermott, AR

Average UV index in September - Dermott, AR
  • 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).

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Average cloud cover in September
Dermott, AR

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

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in September
Dermott, AR

Average visibility in September - Dermott, 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).

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Dermott, Arkansas, USA

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