September weather forecast
Red Oak, AR

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Red Oak, Arkansas, with an average temperature ranging between max 84.9°F (29.4°C) and min 63.7°F (17.6°C).

Temperature

September witnesses a gentle descent in average high-temperature, descending from August's tropical 91°F (32.8°C) to a warm 84.9°F (29.4°C). Nighttime temperature lowers to an average of 63.7°F (17.6°C) in September.

Heat index

In September, the heat index is estimated at a hot 93.2°F (34°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. With 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 'feels like' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

In Red Oak, the average relative humidity in September is 73%.

Rainfall

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.93" (49mm) of precipitation.

Snowfall

In Red Oak, snow does not fall in April through October.

Daylight

In Red Oak, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 6:45 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.

Sunshine

The average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high daily UV index of 5 during September translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

In September, the average high-temperature and low-temperature are 84.9°F (29.4°C) and 63.7°F (17.6°C) respectively. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is estimated at 93.2°F (34°C).

What is the average humidity in September in Red Oak?

The average relative humidity in September is 73%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.93" (49mm) of precipitation.

How much does it rain in September?

In Red Oak, in September, during 11.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

How many hours of daylight does Red Oak have in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:45 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?

The average sunshine duration in September is 9.3h.

What is the UV index reading in September?

In Red Oak, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Red Oak, AR

Average temperature in September - Red Oak, AR
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (49.3°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average pressure in September
Red Oak, AR

Average pressure in September - Red Oak, 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).

Average wind speed in September
Red Oak, AR

Average wind speed in September - Red Oak, AR
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Red Oak, AR

Average humidity in September - Red Oak, AR
  • Average humidity in September: 73%

The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Red Oak, AR

Average rainfall in September - Red Oak, AR
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is April (3.9").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in September
Red Oak, AR

Average rainfall days in September - Red Oak, AR
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is January (9.2 days).

Average snowfall in September
Red Oak, AR

Average snowfall in September - Red Oak, AR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Red Oak, AR

Average snowfall days in September - Red Oak, AR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Red Oak, AR

Average daylight in September / Average sunshine in September - Red Oak, 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: 9h and 54min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

Average sunshine days in September
Red Oak, AR

Average sunshine days in September - Red Oak, AR
  • Average sunshine days in September: 16.8 days

The months with the most sunshine days are January and October (19.4 days).
The month with the least sunshine days is August (13.5 days).

Average UV index in September
Red Oak, AR

Average UV index in September - Red Oak, AR
  • Average UV index in September: 5

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).

Average cloud cover in September
Red Oak, AR

Average cloud cover in September - Red Oak, AR
  • Average cloud cover in September: 30

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).

Average visibility in September
Red Oak, AR

Average visibility in September - Red Oak, 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).

Red Oak, Arkansas, USA

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