Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a tropical 87.6°F (30.9°C) in August to a moderately hot 82°F (27.8°C). Throughout September, O'Kean records an average temperature of 63.7°F (17.6°C) at night.Heat index
The average heat index in September is calculated to be a tropical 87.8°F (31°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In September, the average relative humidity is 73%.Rainfall
In O'Kean, in September, it is raining for 11.8 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 153.1 rainfall days, and 37.13" (943mm) of precipitation is accumulated.Snowfall
In O'Kean, snow does not fall in April through October.Daylight
In O'Kean, Arkansas, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:47 pm CDT.
Sunshine
The average sunshine in September in O'Kean is 9.7h.UV index
In September, the average daily maximum UV index in O'Kean is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for O'Kean in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does O'Kean have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
O'Kean, AR
- Average high temperature in September: 82°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
O'Kean, 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 (29.93"Hg).
Average wind speed in September
O'Kean, AR
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is February (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
O'Kean, AR
- Average humidity in September: 73%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
O'Kean, AR
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is April (4.72").
The driest month (with the least rainfall) is December (2.01").
Average rainfall days in September
O'Kean, AR
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
O'Kean, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
O'Kean, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
O'Kean, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
O'Kean, AR
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
O'Kean, AR
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
O'Kean, AR
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in September
O'Kean, 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).
O'Kean, Arkansas, USA
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