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 onset of September results in a small decrease in the average high-temperature, moderately receding from a tropical 94.6°F (34.8°C) in August to a still hot 88.2°F (31.2°C). Lone Star experiences an average nighttime temperature of 67.1°F (19.5°C) in the month of September.Heat index
The heat index for September is computed to be a torrid 100.4°F (38°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The average relative humidity in September in Lone Star is 69%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.73" (44mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
In Lone Star, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:43 pm. On the last day of September, in Lone Star, sunrise is at 7:12 am and sunset at 7:04 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
How hot does it get in Lone Star in September?
What is the average humidity in September in Lone Star?
What is the driest month in Lone Star?
How much does it rain in Lone Star in September?
When it does not snow in Lone Star?
What is the average length of the day in September in Lone Star?
What time are sunrise and sunset in September in Lone Star?
How long on average sun shines in September in Lone Star?
How high is the UV index in September in Lone Star?
Average temperature in September
Lone Star, TX
- Average high temperature in September: 88.2°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (53.4°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).
Average pressure in September
Lone Star, TX
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Lone Star, TX
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Lone Star, TX
- Average humidity in September: 69%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Lone Star, TX
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in September
Lone Star, TX
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Lone Star, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Lone Star, 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
Lone Star, 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: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Lone Star, TX
- Average sunshine days in September: 16 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is February (14.5 days).
Average UV index in September
Lone Star, 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, February, November and December (UV index 3).
Average cloud cover in September
Lone Star, TX
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Lone Star, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Lone Star, Texas, USA
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