September weather forecastNew Chapel Hill, TX
September
Weather in September
September, the first month of the autumn in New Chapel Hill, is still a tropical month, with temperature in the range of an average high of 88.5°F (31.4°C) and an average low of 67.6°F (19.8°C).Temperature
New Chapel Hill observes a small decrease in the average high-temperature with the arrival of September, falling from August's very hot 95°F (35°C) to a hot 88.5°F (31.4°C). During September nights, New Chapel Hill witnesses a consistent average temperature of 67.6°F (19.8°C).Heat index
September's heat index is appraised at a sweltering 100.4°F (38°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. 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 disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In September, the average relative humidity is 69%.Rainfall
In September, the rain falls for 13.3 days. Throughout September, 1.38" (35mm) of precipitation is accumulated. In New Chapel Hill, during the entire year, the rain falls for 130.8 days and collects up to 20.59" (523mm) of precipitation.Snowfall
In New Chapel Hill, snow does not fall in March through December.Daylight
The average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:06 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
New Chapel Hill, TX
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in September: 67.6°F
The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
New Chapel Hill, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
New Chapel Hill, TX
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is September (5.4mph).
Average humidity in September
New Chapel Hill, TX
- Average humidity in September: 69%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
New Chapel Hill, TX
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are August and November (1.22").
Average rainfall days in September
New Chapel Hill, TX
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is June (13.7 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in September
New Chapel Hill, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
New Chapel Hill, 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, October and November (0 days).
Average daylight in September /
Average sunshine in September
New Chapel Hill, TX
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 0min
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 6min).
Average sunshine days in September
New Chapel Hill, TX
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in September
New Chapel Hill, 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 January, November and December (UV index 3).
Average cloud cover in September
New Chapel Hill, TX
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
New Chapel 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).





