September weather forecast
Barrett, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Barrett, Texas, with temperature in the range of an average low of 72.7°F (22.6°C) and an average high of 87.6°F (30.9°C).

Temperature

September's onset brings a negligible change in high-temperatures, falling from a hot 93.4°F (34.1°C) in August to a still tropical 87.6°F (30.9°C). Barrett records an average low-temperature of 72.7°F (22.6°C) throughout the month of September.

Heat index

The average heat index in September is evaluated at a very hot 102.2°F (39°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Barrett, during September, the rain falls for 20.9 days and regularly aggregates up to 4.88" (124mm) of precipitation. In Barrett, during the entire year, the rain falls for 184.4 days and collects up to 39.45" (1002mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

In Barrett, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:06 pm CDT.

Sunshine

The average sunshine in September in Barrett is 8.8h.

UV index

In September, the average daily maximum UV index in Barrett is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

Is it hot in Barrett during September?

The high-temperature in Barrett during September is 87.6°F (30.9°C) and the low-temperature is 72.7°F (22.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is evaluated at 102.2°F (39°C).

What is the average humidity in September in Barrett?

In September, the average relative humidity in Barrett is 76%.

How many days does it rain in September in Barrett?

In Barrett, during September, the rain falls for 20.9 days and regularly aggregates up to 4.88" (124mm) of precipitation.

When it does not snow in Barrett?

In Barrett, snow does not fall in February through November.

What is the average length of the day in September in Barrett?

In September, the average day length in Barrett, Texas, is 12h and 20min.

When is the sunrise / sunset in September in Barrett?

On the first day of September in Barrett, sunrise is at 6:57 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:06 pm CDT.

How many hours of sunshine does Barrett have in September?

In September, the average sunshine duration in Barrett, Texas, is 8.8h.

What is the UV index intensity in September in Barrett?

In Barrett, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Barrett, TX

Average temperature in September - Barrett, TX
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in September: 72.7°F

The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).

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Average pressure in September
Barrett, TX

Average pressure in September - Barrett, 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 (29.93"Hg).

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Average wind speed in September
Barrett, TX

Average wind speed in September - Barrett, TX
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is September (6mph).

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Average humidity in September
Barrett, TX

Average humidity in September - Barrett, TX
  • Average humidity in September: 76%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are August and October (72%).

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Average rainfall in September
Barrett, TX

Average rainfall in September - Barrett, TX
  • Average rainfall in September: 4.88"

The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is February (1.89").

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Average rainfall days in September
Barrett, TX

Average rainfall days in September - Barrett, TX
  • Average rainfall days in September: 20.9 days

The month with the highest number of rainy days is September (20.9 days).
The month with the least rainy days is January (12.4 days).

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Average snowfall in September
Barrett, TX

Average snowfall in September - Barrett, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Barrett, TX

Average snowfall days in September - Barrett, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Barrett, TX

Average daylight in September / Average sunshine in September - Barrett, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in September
Barrett, TX

Average sunshine days in September - Barrett, TX
  • Average sunshine days in September: 7.7 days

The month with the most sunshine days is January (16.7 days).
The month with the least sunshine days is September (7.7 days).

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Average UV index in September
Barrett, TX

Average UV index in September - Barrett, 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).

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Average cloud cover in September
Barrett, TX

Average cloud cover in September - Barrett, TX
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Barrett, TX

Average visibility in September - Barrett, 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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Barrett, Texas, USA

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