September weather forecastEthel, OK
September
Weather in September
September, the first month of the autumn in Ethel, is also a hot month, with an average temperature ranging between max 86.4°F (30.2°C) and min 65.5°F (18.6°C).Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a tropical 92.8°F (33.8°C) to a still hot 86.4°F (30.2°C). Throughout the month of September, Ethel sees a steady low-temperature average of 65.5°F (18.6°C).Heat index
September's mean heat index is calculated to be a sweltering 95°F (35°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Data suggests that the heat index is set for environments in shade and with a light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
The average relative humidity in September is 69%.Rainfall
In Ethel, during September, the rain falls for 12.8 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, there are 149.7 rainfall days, and 37.6" (955mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Ethel, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:56 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:07 pm CDT.
Sunshine
In Ethel, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ethel, OK
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is August (92.8°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34.7°F).
Average pressure in September
Ethel, OK
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Ethel, OK
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Ethel, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Ethel, OK
- Average rainfall in September: 2.91"
The wettest month (with the highest rainfall) is May (5.12").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in September
Ethel, OK
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in September
Ethel, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Ethel, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Ethel, OK
- Average daylight in September: 12h and 24min
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: 8h and 54min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Ethel, OK
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in September
Ethel, OK
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Ethel, OK
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Ethel, OK
- 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).





