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
September's advent notes a subtle adjustment in average high-temperature to a warm 84.4°F (29.1°C) from August. In September, the recorded average low-temperature is a refreshing 66°F (18.9°C).Heat index
September's heat index is calculated to be a hot 93.2°F (34°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in September is 73%.Rainfall
In Olena, Arkansas, in September, during 13.8 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 163.4 rainfall days, and 42.52" (1080mm) of precipitation is accumulated.Snowfall
In Olena, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:31 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:50 pm CDT.
Sunshine
The average sunshine in September in Olena, Arkansas, is 9.7h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Ward off overexposure. Defence against solar harm is crucial. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Olena have in September?
What is the UV index intensity in September?
Average temperature in September
Olena, AR
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in September
Olena, 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
Olena, AR
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Olena, AR
- Average humidity in September: 73%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Olena, AR
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is November (2.56").
Average rainfall days in September
Olena, AR
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is October (9.5 days).
Average snowfall in September
Olena, AR
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Olena, AR
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.3 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
Olena, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Olena, AR
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in September
Olena, 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, February and December (UV index 3).
Average cloud cover in September
Olena, AR
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in September
Olena, 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).
Olena, Arkansas, USA
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