September weather forecast
Brinkley, AR

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Weather in September

September, the first month of the autumn in Brinkley, is also a moderately hot month, with an average temperature fluctuating between 65.3°F (18.5°C) and 83.3°F (28.5°C).

Temperature

With the advent of September, Brinkley experiences an average high-temperature of a warm 83.3°F (28.5°C), mirroring a close resemblance to the previous month. During September, Brinkley consistently records a temperature low averaging a refreshing 65.3°F (18.5°C).

Heat index

In September, the heat index is estimated at a hot 89.6°F (32°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.

Humidity

The average relative humidity in September is 74%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 2.13" (54mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:38 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:49 pm CDT.

Sunshine

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

UV index

In September, the average daily maximum UV index in Brinkley, Arkansas, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 6 transforms into these recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

How hot is it in Brinkley in September?

In September, in Brinkley, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 65.3°F (18.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 89.6°F (32°C).

What is the average humidity in September in Brinkley?

In Brinkley, Arkansas, the average relative humidity in September is 74%.

What is the driest month in Brinkley?

The month with the least rainfall in Brinkley is September, when the rain falls for 12.1 days and typically collects 2.13" (54mm) of precipitation.

How much does it rain in Brinkley in September?

In Brinkley, during September, the rain falls for 12.1 days and regularly aggregates up to 2.13" (54mm) of precipitation.

When it does not snow in Brinkley?

April through October are months without snowfall in Brinkley.

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

In September, the average day length is 12h and 23min.

When is the sunrise / sunset in September in Brinkley?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:30 pm. On the last day of the month, in Brinkley, sunrise is at 6:59 am and sunset at 6:49 pm CDT.

How many hours of sunshine does Brinkley have in September?

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

What is the UV index intensity in September in Brinkley?

In September, the average daily maximum UV index in Brinkley, Arkansas, is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Brinkley, AR

Average temperature in September - Brinkley, AR
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (47.5°F).

  • Average low temperature in September: 65.3°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 (34.3°F).

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Average pressure in September
Brinkley, AR

Average pressure in September - Brinkley, 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).

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Average wind speed in September
Brinkley, AR

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

The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
Brinkley, AR

Average humidity in September - Brinkley, AR
  • Average humidity in September: 74%

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in September
Brinkley, AR

Average rainfall in September - Brinkley, 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
Brinkley, AR

Average rainfall days in September - Brinkley, AR
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (9.1 days).

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Average snowfall in September
Brinkley, AR

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

The month with the highest snowfall is February (0.91").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Brinkley, AR

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

The months with the highest number of snowfall days are January and February (1.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Brinkley, AR

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 9h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in September
Brinkley, AR

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

The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in September
Brinkley, AR

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

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

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Average cloud cover in September
Brinkley, AR

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

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 24).

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Average visibility in September
Brinkley, AR

Average visibility in September - Brinkley, 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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Brinkley, Arkansas, USA

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