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 the onset of September, the average high-temperature subtly recedes from August's hot 90°F (32.2°C) to a warm 82.9°F (28.3°C). Twin Oaks records a consistent low-temperature of 63°F (17.2°C) during September nights.Heat index
In September, the average heat index is appraised at a tropical 87.8°F (31°C). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In September, the average relative humidity is 71%.Rainfall
In Twin Oaks, during September, the rain falls for 12.5 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Twin Oaks, during the entire year, the rain falls for 142.1 days and collects up to 31.3" (795mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Twin Oaks, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:03 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Twin Oaks, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September in Twin Oaks?
How much does it rain in September?
When it does not snow?
What is the average length of the day 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
Twin Oaks, OK
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in September: 63°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in September
Twin Oaks, OK
- 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 (29.91"Hg).
Average wind speed in September
Twin Oaks, OK
- Average wind speed in September: 7.2mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Twin Oaks, OK
- Average humidity in September: 71%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are August and October (69%).
Average rainfall in September
Twin Oaks, OK
- Average rainfall in September: 3.07"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days in September
Twin Oaks, OK
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (7 days).
Average snowfall in September
Twin Oaks, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Twin Oaks, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Twin Oaks, OK
- 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 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Twin Oaks, OK
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Twin Oaks, OK
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Twin Oaks, OK
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Twin Oaks, 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).
Twin Oaks, Oklahoma, USA
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