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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from 93.4°F (34.1°C) to a still hot 86.9°F (30.5°C). In the month of September, Stephens Gap experiences an average low-temperature of 65.7°F (18.7°C).Heat index
In September, the heat index is estimated at a sweltering 96.8°F (36°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September is 69%.Rainfall
September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 1.89" (48mm) of precipitation.Snowfall
In Stephens Gap, snow does not fall in April through November.Daylight
In September, the average length of the day in Stephens Gap is 12h and 22min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:03 pm CDT.
Sunshine
In Stephens Gap, the average sunshine in September is 9.3h.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 average person.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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?
What is the driest month?
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 many hours of sunshine does Stephens Gap have in September?
What is the UV index intensity in September?
Average temperature in September
Stephens Gap, OK
- Average high temperature in September: 86.9°F
The warmest months (with the highest average high temperature) are July and August (93.4°F).
The month with the lowest average high temperature is January (51.1°F).
- Average low temperature in September: 65.7°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 (34.5°F).
Average pressure in September
Stephens Gap, OK
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Stephens Gap, OK
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Stephens Gap, OK
- Average humidity in September: 69%
The months with the highest relative humidity are February and March (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Stephens Gap, OK
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is May (5.28").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in September
Stephens Gap, OK
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in September
Stephens Gap, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Stephens Gap, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 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
Stephens Gap, OK
- 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Stephens Gap, OK
- Average sunshine days in September: 17.4 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in September
Stephens Gap, 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
Stephens Gap, OK
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Stephens Gap, 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).
Stephens Gap, Oklahoma, USA
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