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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a tropical 87.6°F (30.9°C) in August to a moderately hot 82°F (27.8°C). O'Kean encounters an average low-temperature of 63.7°F (17.6°C) during September nights.Heat index
The heat index for September is evaluated at a tropical 87.8°F (31°C). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
In O'Kean, the average relative humidity in September is 73%.Rainfall
In O'Kean, during September, the rain falls for 11.8 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 153.1 rainfall days, and 37.13" (943mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
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, in O'Kean, sunrise is at 6:58 am and sunset at 6:47 pm CDT.
Sunshine
In September, the average sunshine in O'Kean is 9.7h.UV index
In O'Kean, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What are the temperatures in O'Kean in September?
What is the average humidity in September in O'Kean?
How many days does it rain in September in O'Kean?
When it does not snow in O'Kean?
What is the average length of the day in September in O'Kean?
When are sunrise and sunset in September in O'Kean?
How long on average sun shines in September in O'Kean?
How high is the UV index in September in O'Kean?
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
Weather forecast for your location
2. Allow the app to use your location
