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 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
Stephenville signifies an average high-temperature of a still tropical 86.4°F (30.2°C) in September, closely mirroring the 88.9°F (31.6°C) of August. Stephenville experiences an average nighttime temperature of 73°F (22.8°C) in the month of September.Heat index
September's average heat index is evaluated at a fiery hot 100.4°F (38°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
The average relative humidity in September is 78%.Rainfall
In September, the rain falls for 14 days. Throughout September, 1.1" (28mm) of precipitation is accumulated. In Stephenville, during the entire year, the rain falls for 128.6 days and collects up to 13.27" (337mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September in Stephenville is 12h and 20min.On the first day of September in Stephenville, sunrise is at 6:42 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:50 pm CDT.
Sunshine
In Stephenville, the average sunshine in September is 10.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 6 transforms into the following advice:
Shun overexposure. Protection from sun ravages is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
Is it hot in Stephenville during September?
What is the average humidity in September in Stephenville?
How many days does it rain in September in Stephenville?
When it does not snow in Stephenville?
What is the average length of the day in September in Stephenville?
When is the sunrise / sunset in September in Stephenville?
How long on average sun shines in September in Stephenville?
What is the UV index reading in September in Stephenville?
Average temperature in September
Stephenville, LA
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in September: 73°F
The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (47.1°F).
Average pressure in September
Stephenville, LA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.96"Hg).
Average wind speed in September
Stephenville, LA
- Average wind speed in September: 6mph
The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Stephenville, LA
- Average humidity in September: 78%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Stephenville, LA
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is March (0.43").
Average rainfall days in September
Stephenville, LA
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is November (6 days).
Average snowfall days in September
Stephenville, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Stephenville, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 10h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Stephenville, LA
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is August (6.9 days).
Average UV index in September
Stephenville, LA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Stephenville, LA
- Average cloud cover in September: 25
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 23).
Average visibility in September
Stephenville, LA
- 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).
Stephenville, Louisiana, USA
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