September weather forecastCedar Hill, TX
September
Weather in September
September, the first month of the autumn in Cedar Hill, is still a tropical month, with temperature in the range of an average high of 87.8°F (31°C) and an average low of 70.2°F (21.2°C).Temperature
As September arrives, Cedar Hill's weather displays a minor decrease in high-temperatures, transitioning from August's torrid 95.9°F (35.5°C) to a tropical 87.8°F (31°C). Nighttime temperatures consistently average a pleasant 70.2°F (21.2°C) during September.Heat index
The average heat index in September is computed to be a very hot 96.8°F (36°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In Cedar Hill, the average relative humidity in September is 64%.Rainfall
In September, the rain falls for 14.3 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. In Cedar Hill, during the entire year, the rain falls for 126.7 days and collects up to 19.57" (497mm) of precipitation.Snowfall
In Cedar Hill, snow does not fall in March through October.Daylight
In Cedar Hill, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:03 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:13 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Cedar Hill, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cedar Hill, TX
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (54.7°F).
- Average low temperature in September: 70.2°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (39°F).
Average pressure in September
Cedar Hill, 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 (29.91"Hg).
Average wind speed in September
Cedar Hill, TX
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in September
Cedar Hill, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Cedar Hill, TX
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in September
Cedar Hill, TX
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is September (14.3 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Cedar Hill, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Cedar Hill, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Cedar Hill, TX
- Average daylight in September: 12h and 24min
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 6min).
- Average sunshine in September: 8h and 30min
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 30min).
Average sunshine days in September
Cedar Hill, TX
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is September (13.6 days).
Average UV index in September
Cedar Hill, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Cedar Hill, TX
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Cedar Hill, 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).
