September weather forecastSommers Mill, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in Sommers Mill, Texas, with an average temperature varying between 88.7°F (31.5°C) and 71.1°F (21.7°C).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a very hot 96.4°F (35.8°C) in August to a tropical 88.7°F (31.5°C). During September, the average low-temperature in Sommers Mill is a pleasant 71.1°F (21.7°C).Heat index
The average heat index in September is computed to be a very hot 98.6°F (37°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. 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 hold particular importance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In Sommers Mill, the average relative humidity in September is 65%.Rainfall
In Sommers Mill, in September, it is raining for 12.6 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 107 rainfall days, and 13.27" (337mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall in Sommers Mill.Daylight
In Sommers Mill, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Sommers Mill, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 6 during September leads to these advisories:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sommers Mill, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in September: 71.1°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
Sommers Mill, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Sommers Mill, TX
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).
Average humidity in September
Sommers Mill, TX
- Average humidity in September: 65%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Sommers Mill, TX
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
Sommers Mill, TX
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Sommers Mill, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Sommers Mill, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sommers Mill, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Sommers Mill, TX
- Average sunshine days in September: 16 days
The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is May (15.5 days).
Average UV index in September
Sommers Mill, TX
- 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 3).
Average cloud cover in September
Sommers Mill, TX
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Sommers Mill, 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).
