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
As Bartlett, Texas, enters September, the average high-temperature subtly lowers from the a torrid 96.4°F (35.8°C) of August to a hot 88.7°F (31.5°C). September nights in Bartlett are marked by an average low-temperature of 70.9°F (21.6°C).Heat index
September's heat index is computed to be a sweltering 100.4°F (38°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In September, the average relative humidity is 66%.Rainfall
In Bartlett, in September, during 15.3 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. In Bartlett, during the entire year, the rain falls for 145.4 days and collects up to 28.5" (724mm) of precipitation.Snowfall
March through October and December are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:15 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Bartlett have in September?
How high is the UV index in September?
Average temperature in September
Bartlett, 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: 70.9°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in September
Bartlett, 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
Bartlett, TX
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.7mph).
Average humidity in September
Bartlett, TX
- Average humidity in September: 66%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (58%).
Average rainfall in September
Bartlett, TX
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is October (4.13").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in September
Bartlett, TX
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in September
Bartlett, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Bartlett, 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 March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Bartlett, TX
- Average daylight in September: 12h and 2min
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 3min
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
Bartlett, TX
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is September (12.5 days).
Average UV index in September
Bartlett, 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
Bartlett, TX
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Bartlett, 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).
Bartlett, Texas, USA
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