September weather forecast
Oppelo, AR

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Weather in September

September, the first month of the autumn in Oppelo, is still a warm month, with an average temperature fluctuating between 63°F (17.2°C) and 84.4°F (29.1°C).

Temperature

In September, the average high-temperature marginally decreases from a tropical 90.9°F (32.7°C) in August to a warm 84.4°F (29.1°C). Throughout September, the temperature in Oppelo falls to an average low of 63°F (17.2°C).

Heat index

The heat index for September is appraised at a tropical 93.2°F (34°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index readings emphasize conditions of light breezes and shaded spots. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

April through October are months without snowfall in Oppelo.

Daylight

In Oppelo, the average length of the day in September is 12h and 23min.
On the first day of September in Oppelo, sunrise is at 6:44 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:55 pm CDT.

Sunshine

The average sunshine in September is 9.7h.

UV index

In Oppelo, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 6 during September translates into the following guidance:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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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Frequently asked questions

How hot is it in Oppelo in September?

In Oppelo, in September, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 63°F (17.2°C). 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 appraised at 93.2°F (34°C).

What is the average humidity in September in Oppelo?

The average relative humidity in September in Oppelo, Arkansas, is 73%.

What is the driest month in Oppelo?

September is the month with the least rainfall in Oppelo, Arkansas. Rain falls for 11.4 days and accumulates 1.93" (49mm) of precipitation.

How many days does it rain in September in Oppelo?

In Oppelo, in September, during 11.4 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow in Oppelo?

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

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

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

When is the sunrise / sunset in September in Oppelo?

On the first day of September, sunrise is at 6:44 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:55 pm CDT.

How long on average sun shines in September in Oppelo?

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

How high is the UV index in September in Oppelo?

In Oppelo, Arkansas, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes 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
Oppelo, AR

Average temperature in September - Oppelo, AR
  • Average high temperature in September: 84.4°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 (47.7°F).

  • Average low temperature in September: 63°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (32°F).

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Average pressure in September
Oppelo, AR

Average pressure in September - Oppelo, AR
  • Average pressure in September: 30.01"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
Oppelo, AR

Average wind speed in September - Oppelo, AR
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in September
Oppelo, AR

Average humidity in September - Oppelo, AR
  • Average humidity in September: 73%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and October (72%).

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Average rainfall in September
Oppelo, AR

Average rainfall in September - Oppelo, AR
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in September
Oppelo, AR

Average rainfall days in September - Oppelo, AR
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in September
Oppelo, AR

Average snowfall in September - Oppelo, 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
Oppelo, AR

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

The month with the highest number of snowfall days is January (1.7 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
Oppelo, AR

Average daylight in September / Average sunshine in September - Oppelo, 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 48min).

  • Average sunshine in September: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

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Average sunshine days in September
Oppelo, AR

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

The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is July (12.9 days).

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Average UV index in September
Oppelo, AR

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

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

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Average cloud cover in September
Oppelo, AR

Average cloud cover in September - Oppelo, AR
  • Average cloud cover in September: 27

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 26).

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Average visibility in September
Oppelo, AR

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

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

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Oppelo, Arkansas, USA

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