September weather forecast and climate
Brinkley, AR

Weather in September

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

Temperature

In Brinkley, the average high-temperature is essentially the same as in August - a warm 83.3°F (28.5°C). In September, the average low-temperature is 65.3°F (18.5°C).

Heat index

The average heat index is estimated at a tropical 90.1°F (32.3°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the 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 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, metabolic differences). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity in Brinkley is 74%.

Rainfall

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

Snowfall

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

Daylight

In Brinkley, the average length of the day is 12.4h.

Sunshine

The average sunshine in Brinkley is 9.6h.

UV index

In Brinkley, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Brinkley?

In September, in Brinkley, Arkansas, the average high-temperature is 83.3°F (28.5°C), and the average low-temperature is 65.3°F (18.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), that takes the relative humidity and factores it into the air temperature reading, is calculated to 90.1°F (32.3°C).

What is the average humidity in September in Brinkley?

The average relative humidity in September is 74%.

How many days does it rain in September in Brinkley?

In Brinkley, in September, during 12.1 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

What is the driest month in Brinkley?

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

When it does not snow in Brinkley?

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

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

The average length of the day in September is 12.4h.

How many hours of sunshine does Brinkley have in September?

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

What is the UV index intensity in September in Brinkley?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to the Sun's UV rays.

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"

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

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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").
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

Months with the highest number of snowfall days are January and February (1.4 days).
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: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in September: 9.6h

Months with the most sunshine are June and July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.9h).

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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).
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

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

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