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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a hot 93.2°F (34°C) in August to a still tropical 87.3°F (30.7°C). September is characterized by a distinct thermal shift, with nighttime lows averaging at a refreshing 65.5°F (18.6°C).Heat index
The heat index for September is estimated at a fiery hot 98.6°F (37°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Heat index details are generally centered around shaded locations and a mild breeze. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The months with the lowest humidity in Okolona, Arkansas, are July through October, with an average relative humidity of 71%.Rainfall
September is the month with the least rainfall in Okolona, Arkansas. Rain falls for 10.2 days and accumulates 1.26" (32mm) of precipitation.Snowfall
In Okolona, snow does not fall in April through December.Daylight
In Okolona, Arkansas, the average length of the day in September is 12h and 22min.On the first day of September in Okolona, sunrise is at 6:47 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine is 9.5h.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 exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
Is it hot in Okolona during September?
What are the least humid months in Okolona?
What is the average humidity in September in Okolona?
What is the driest month in Okolona?
How many days does it rain in September in Okolona?
When it does not snow in Okolona?
What is the average length of the day in September in Okolona?
What time are sunrise and sunset in September in Okolona?
How long on average sun shines in September in Okolona?
What is the UV index intensity in September in Okolona?
Average temperature in September
Okolona, AR
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Okolona, 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
Okolona, AR
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Okolona, AR
- Average humidity in September: 71%
The months with the highest relative humidity are February, March and December (80%).
The months with the lowest relative humidity are July, August, September and October (71%).
Average rainfall in September
Okolona, AR
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days in September
Okolona, AR
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in September
Okolona, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Okolona, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight in September /
Average sunshine in September
Okolona, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in September
Okolona, AR
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is August (14.1 days).
Average UV index in September
Okolona, 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
Okolona, AR
- Average cloud cover in September: 28
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 28).
Average visibility in September
Okolona, 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).
Okolona, Arkansas, USA
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