September weather forecast
Chatt, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Chatt, Texas, with an average temperature fluctuating between 88°F (31.1°C) and 70.3°F (21.3°C).

Temperature

Chatt's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's very hot 95.9°F (35.5°C) to a tropical 88°F (31.1°C). September nights in Chatt, Texas, experience a consistent temperature drop to an agreeable 70.3°F (21.3°C).

Heat index

In September, the heat index is appraised at a very hot 96.8°F (36°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In September, the average relative humidity is 65%.

Rainfall

In September, in Chatt, Texas, the rain falls for 14.8 days. Throughout September, 2.8" (71mm) of precipitation is accumulated. In Chatt, during the entire year, the rain falls for 139.8 days and collects up to 32.28" (820mm) of precipitation.

Snowfall

In Chatt, Texas, snow does not fall in January, April through November.

Daylight

In September, the average length of the day in Chatt is 12h and 21min.
On the first day of the month, sunrise is at 7:04 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:14 pm CDT.

Sunshine

In September, the average sunshine in Chatt, Texas, is 8.3h.

UV index

In Chatt, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
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Frequently asked questions

How hot does it get in Chatt in September?

The high-temperature during September is 88°F (31.1°C) and the low-temperature is 70.3°F (21.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 96.8°F (36°C).

What is the average humidity in September in Chatt?

The average relative humidity in September in Chatt is 65%.

How much does it rain in Chatt in September?

In Chatt, Texas, during September, the rain falls for 14.8 days and regularly aggregates up to 2.8" (71mm) of precipitation.

When it does not snow in Chatt?

In Chatt, Texas, snow does not fall in January, April through November.

How many hours of daylight does Chatt have in September?

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

When is the sunrise / sunset in September in Chatt?

In September, on the first day of the month, sunrise is at 7:04 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:14 pm CDT.

How long on average sun shines in September in Chatt?

In September, the average sunshine duration in Chatt, Texas, is 8.3h.

What is the UV index reading in September in Chatt?

In Chatt, Texas, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Chatt, TX

Average temperature in September - Chatt, TX
  • Average high temperature in September: 88°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 (55.9°F).

  • Average low temperature in September: 70.3°F

The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).

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Average pressure in September
Chatt, TX

Average pressure in September - Chatt, 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 (29.91"Hg).

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Average wind speed in September
Chatt, TX

Average wind speed in September - Chatt, TX
  • Average wind speed in September: 6.9mph

The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest month (with the lowest average wind speed) is September (6.9mph).

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Average humidity in September
Chatt, TX

Average humidity in September - Chatt, TX
  • Average humidity in September: 65%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (57%).

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Average rainfall in September
Chatt, TX

Average rainfall in September - Chatt, TX
  • Average rainfall in September: 2.8"

The wettest month (with the highest rainfall) is October (4.53").
The driest month (with the least rainfall) is November (1.77").

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Average rainfall days in September
Chatt, TX

Average rainfall days in September - Chatt, TX
  • Average rainfall days in September: 14.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Chatt, TX

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

The month with the highest snowfall is February (0.55").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Chatt, TX

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

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in September / Average sunshine in September - Chatt, 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 July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

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Average sunshine days in September
Chatt, TX

Average sunshine days in September - Chatt, TX
  • Average sunshine days in September: 13.8 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.6 days).

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Average UV index in September
Chatt, TX

Average UV index in September - Chatt, 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
Chatt, TX

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

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in September
Chatt, TX

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

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