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 slightly decreases from a sweltering 95.5°F (35.3°C) in August to a hot 86.7°F (30.4°C). In September, in Briar, the average low-temperature is 68.9°F (20.5°C).Heat index
The average heat index in September is computed to be a torrid 95°F (35°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'apparent temperature', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like activity, differences in body mass, height, and shape, metabolic differences, and clothing affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important 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.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The average relative humidity in September in Briar, Texas, is 64%.Rainfall
In Briar, in September, it is raining for 10.6 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 97.5 rainfall days, and 12.8" (325mm) of precipitation is accumulated.Snowfall
In Briar, snow does not fall in January, April through November.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:04 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:16 pm CDT.
Sunshine
The average sunshine in September in Briar is 8.4h.UV index
In Briar, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 6 in September interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
FAQ
What is the temperature in September in Briar?
What is the average humidity in September in Briar?
How many days does it rain in September in Briar?
When it does not snow in Briar?
What is the average length of the day in September in Briar?
When is the sunrise / sunset in September in Briar?
How many hours of sunshine does Briar have in September?
What is the UV index reading in September in Briar?
Average temperature in September
Briar, TX
- Average high temperature in September: 86.7°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 (54.7°F).
- Average low temperature in September: 68.9°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 (37.9°F).
Average pressure in September
Briar, 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 (29.89"Hg).
Average wind speed in September
Briar, TX
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).
Average humidity in September
Briar, 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
Briar, TX
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in September
Briar, TX
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (4 days).
Average snowfall in September
Briar, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Briar, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 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
Briar, 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: 8h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Briar, TX
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is January (26.1 days).
The month with the least sunshine days is May (16.5 days).
Average UV index in September
Briar, 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
Briar, TX
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Briar, 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).
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