September weather forecast
Sand Flats, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Sand Flats, Texas, with an average temperature ranging between min 68.9°F (20.5°C) and max 88.7°F (31.5°C).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a fiery hot 95.9°F (35.5°C) in August to a hot 88.7°F (31.5°C). Throughout the nights in September, an average low-temperature of 68.9°F (20.5°C) is noted in Sand Flats.

Heat index

The heat index for September is calculated to be a fiery hot 102.2°F (39°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Sand Flats, the average relative humidity in September is 70%.

Rainfall

In Sand Flats, during September, the rain falls for 15.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, there are 149.4 rainfall days, and 30" (762mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Sand Flats are January, February and September. September is the first month it typically snows in Sand Flats, Texas. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Sand Flats, there are 1.1 snowfall days, and 0.47" (12mm) of snow is accumulated.

Daylight

In Sand Flats, the average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 6:59 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:09 pm CDT.

Sunshine

In Sand Flats, the average sunshine in September is 8.4h.

UV index

The average daily maximum UV index in September in Sand Flats is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in September interprets into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

Is it hot in Sand Flats during September?

The average high-temperature and low-temperature during September are 88.7°F (31.5°C) and 68.9°F (20.5°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 102.2°F (39°C).

What is the average humidity in September in Sand Flats?

The average relative humidity in September is 70%.

How many days does it rain in September in Sand Flats?

In Sand Flats, in September, it is raining for 15.5 days, with typically 2.56" (65mm) of accumulated precipitation.

When does it start snowing in Sand Flats?

September is the first month it typically snows in Sand Flats. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the average length of the day in September in Sand Flats?

The average day length in September in Sand Flats is 12h and 21min.

What time are sunrise and sunset in September in Sand Flats?

On the first day of September in Sand Flats, Texas, sunrise is at 6:59 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:09 pm CDT.

How many hours of sunshine does Sand Flats have in September?

In September, the average sunshine duration in Sand Flats, Texas, is 8.4h.

What is the UV index intensity in September in Sand Flats?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
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
Sand Flats, TX

Average temperature in September - Sand Flats, TX
  • Average high temperature in September: 88.7°F

The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).

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Average pressure in September
Sand Flats, TX

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

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Average wind speed in September
Sand Flats, TX

Average wind speed in September - Sand Flats, TX
  • Average wind speed in September: 5.7mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).

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Average humidity in September
Sand Flats, TX

Average humidity in September - Sand Flats, TX
  • Average humidity in September: 70%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in September
Sand Flats, TX

Average rainfall in September - Sand Flats, TX
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in September
Sand Flats, TX

Average rainfall days in September - Sand Flats, TX
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is September (15.5 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in September
Sand Flats, TX

Average snowfall in September - Sand Flats, TX
  • Average snowfall in September: 0.04"

The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0").

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Average snowfall days in September
Sand Flats, TX

Average snowfall days in September - Sand Flats, TX
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Sand Flats, TX

Average daylight in September / Average sunshine in September - Sand Flats, 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 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Sand Flats, TX

Average sunshine days in September - Sand Flats, TX
  • Average sunshine days in September: 12.6 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is September (12.6 days).

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Average UV index in September
Sand Flats, TX

Average UV index in September - Sand Flats, 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).

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Average cloud cover in September
Sand Flats, TX

Average cloud cover in September - Sand Flats, TX
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Sand Flats, TX

Average visibility in September - Sand Flats, TX
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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Sand Flats, Texas, USA

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