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
In September, the average high-temperature marginally drops from a very hot 95.5°F (35.3°C) in August to a hot 88.3°F (31.3°C). Thornton throughout September, experiences an average nighttime temperature of 69.4°F (20.8°C).Heat index
Throughout September, the heat index is appraised at a sweltering 100.4°F (38°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
In Thornton, the average relative humidity in September is 69%.Rainfall
In Thornton, during September, the rain falls for 14.9 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Thornton, during the entire year, the rain falls for 150.9 days and collects up to 32.99" (838mm) of precipitation.Snowfall
In Thornton, snow does not fall in April through December.Daylight
In Thornton, the average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:12 pm CDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
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 radiation for ordinary individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
How hot is September in Thornton?
What is the average humidity in September in Thornton?
How much does it rain in Thornton in September?
When it does not snow in Thornton?
How many hours of daylight does Thornton have in September?
When are sunrise and sunset in September in Thornton?
How long on average sun shines in September in Thornton?
What is the UV index intensity in September in Thornton?
Average temperature in September
Thornton, TX
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in September: 69.4°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in September
Thornton, 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
Thornton, TX
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is March (10mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).
Average humidity in September
Thornton, TX
- Average humidity in September: 69%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Thornton, TX
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is October (3.94").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in September
Thornton, TX
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in September
Thornton, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Thornton, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 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
Thornton, TX
- Average daylight in September: 12h and 2min
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: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Thornton, TX
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is January (20.2 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in September
Thornton, 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 and December (UV index 3).
Average cloud cover in September
Thornton, TX
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Thornton, 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).
Thornton, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
