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
The transition into September subtly indicates a reduction in the average high-temperature, down to a hot 86.9°F (30.5°C) from August's very hot 95°F (35°C). During the September nights, an average temperature of 69.3°F (20.7°C) is observed.Heat index
September's average heat index is estimated at a torrid 95°F (35°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity in Celina is 64%.Rainfall
In Celina, during September, the rain falls for 14.7 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, in Celina, there are 139.7 rainfall days, and 31.73" (806mm) of precipitation is accumulated.Snowfall
In Celina, Texas, snow does not fall in April through October.Daylight
In Celina, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:12 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Celina, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
How hot is September in Celina?
What is the average humidity in September in Celina?
How much does it rain in Celina in September?
When it does not snow in Celina?
What is the average length of the day in September in Celina?
What time are sunrise and sunset in September in Celina?
How many hours of sunshine does Celina have in September?
How high is the UV index in September in Celina?
Average temperature in September
Celina, TX
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in September: 69.3°F
The month with the highest average low temperature is July (75.6°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure in September
Celina, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Celina, TX
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in September
Celina, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Celina, TX
- Average rainfall in September: 2.99"
The wettest month (with the highest rainfall) is October (3.94").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in September
Celina, TX
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7 days).
Average snowfall in September
Celina, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Celina, TX
- 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
Celina, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Celina, TX
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (13.6 days).
Average UV index in September
Celina, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in September
Celina, TX
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Celina, TX
- 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).
Celina, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
