September weather forecast
Flatonia, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Flatonia, Texas, with temperature in the range of an average low of 71.4°F (21.9°C) and an average high of 88.2°F (31.2°C).

Temperature

The shift from August to September includes a small decrease in the average high-temperature, from a sweltering 95.5°F (35.3°C) to a hot 88.2°F (31.2°C). In the month of September, an average of 71.4°F (21.9°C) marks the low-temperature in Flatonia.

Heat index

The heat index in September is estimated at a sweltering 102.2°F (39°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in September in Flatonia is 73%.

Rainfall

In September, in Flatonia, the rain falls for 16.5 days. Throughout September, 3.11" (79mm) of precipitation is accumulated. In Flatonia, Texas, during the entire year, the rain falls for 158.8 days and collects up to 25.98" (660mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

In September, the average length of the day in Flatonia is 12h and 20min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:50 pm. On the last day of September, in Flatonia, sunrise is at 7:21 am and sunset at 7:14 pm CDT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In Flatonia, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 6 in September leads to these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Frequently asked questions

Is it hot in Flatonia during September?

The high-temperature in Flatonia, Texas, during September is 88.2°F (31.2°C) and the low-temperature is 71.4°F (21.9°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 102.2°F (39°C).

What is the average humidity in September in Flatonia?

The average relative humidity in September is 73%.

How many days does it rain in September in Flatonia?

In Flatonia, during September, the rain falls for 16.5 days and regularly aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Flatonia?

In Flatonia, Texas, snow does not fall in March through November.

How many hours of daylight does Flatonia have in September?

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

When are sunrise and sunset in September in Flatonia?

In September, on the first day of the month, sunrise is at 7:06 am and sunset at 7:50 pm. On the last day of the month, in Flatonia, sunrise is at 7:21 am and sunset at 7:14 pm CDT.

How many hours of sunshine does Flatonia have in September?

In September, the average sunshine duration in Flatonia is 8.4h.

What is the UV index reading in September in Flatonia?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Flatonia, TX

Average temperature in September - Flatonia, TX
  • Average high temperature in September: 88.2°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 (60.3°F).

  • Average low temperature in September: 71.4°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (44.1°F).

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Average pressure in September
Flatonia, TX

Average pressure in September - Flatonia, TX
  • Average pressure in September: 29.95"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).

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Average wind speed in September
Flatonia, TX

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

The windiest months (with the highest average wind speed) are February, March and April (8.6mph).
The calmest month (with the lowest average wind speed) is September (6mph).

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Average humidity in September
Flatonia, TX

Average humidity in September - Flatonia, TX
  • Average humidity in September: 73%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in September
Flatonia, TX

Average rainfall in September - Flatonia, TX
  • Average rainfall in September: 3.11"

The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (1.1").

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Average rainfall days in September
Flatonia, TX

Average rainfall days in September - Flatonia, TX
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is September (16.5 days).
The month with the least rainy days is January (9.7 days).

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Average snowfall in September
Flatonia, TX

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

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Flatonia, TX

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

The month with the highest number of snowfall days is December (0.4 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
Flatonia, TX

Average daylight in September / Average sunshine in September - Flatonia, 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 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Flatonia, TX

Average sunshine days in September - Flatonia, TX
  • Average sunshine days in September: 11.2 days

The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is June (10 days).

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Average UV index in September
Flatonia, TX

Average UV index in September - Flatonia, 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
Flatonia, TX

Average cloud cover in September - Flatonia, TX
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Flatonia, TX

Average visibility in September - Flatonia, TX
  • Average visibility in September: 6mi

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

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Flatonia, Texas, USA

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