September weather forecast
Avalon, TX

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Weather in September

September, the first month of the autumn in Avalon, is still a hot month, with temperature in the range of an average low of 70°F (21.1°C) and an average high of 87.6°F (30.9°C).

Temperature

The start of September comes with a small reduction in the average high-temperature, subtly receding from a very hot 95.5°F (35.3°C) in August to a hot 87.6°F (30.9°C). Avalon in September anticipates an average nighttime temperature of 70°F (21.1°C).

Heat index

During September, the heat index is estimated at a fiery hot 96.8°F (36°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In Avalon, the average relative humidity in September is 65%.

Rainfall

In September, in Avalon, the rain falls for 15.6 days. Throughout September, 2.83" (72mm) of precipitation is accumulated. In Avalon, during the entire year, the rain falls for 146.4 days and collects up to 32.72" (831mm) of precipitation.

Snowfall

In Avalon, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of September in Avalon, sunrise is at 7:02 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:12 pm CDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in September in Avalon is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 6 during September translates into the following guidance:
Fend off overexposure. Sun protection is vital. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

How hot is September in Avalon?

The high-temperature, in September, in Avalon, is 87.6°F (30.9°C), while the low-temperature averages to 70°F (21.1°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 96.8°F (36°C).

What is the average humidity in September in Avalon?

The average relative humidity in September is 65%.

How much does it rain in Avalon in September?

In September, the rain falls for 15.6 days. Throughout September, 2.83" (72mm) of precipitation is accumulated.

When it does not snow in Avalon?

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

How many hours of daylight does Avalon have in September?

In September, the average day length in Avalon is 12h and 21min.

When is the sunrise / sunset in September in Avalon?

In September, on the first day of the month, sunrise is at 7:02 am and sunset at 7:51 pm. On the last day of the month, in Avalon, sunrise is at 7:20 am and sunset at 7:12 pm CDT.

How long on average sun shines in September in Avalon?

In September, the average sunshine duration in Avalon is 8.5h.

What is the UV index reading in September in Avalon?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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
Avalon, TX

Average temperature in September - Avalon, TX
  • Average high temperature in September: 87.6°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 (55.8°F).

  • Average low temperature in September: 70°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

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Average pressure in September
Avalon, TX

Average pressure in September - Avalon, 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
Avalon, TX

Average wind speed in September - Avalon, TX
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in September
Avalon, TX

Average humidity in September - Avalon, 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 (58%).

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Average rainfall in September
Avalon, TX

Average rainfall in September - Avalon, TX
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is October (4.57").
The driest month (with the least rainfall) is February (1.85").

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Average rainfall days in September
Avalon, TX

Average rainfall days in September - Avalon, TX
  • Average rainfall days in September: 15.6 days

The months with the highest number of rainy days are May and September (15.6 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Avalon, TX

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

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Avalon, TX

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

The month with the highest number of snowfall days is February (1.3 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
Avalon, TX

Average daylight in September / Average sunshine in September - Avalon, 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 3min

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
Avalon, TX

Average sunshine days in September - Avalon, TX
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is September (13.2 days).

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Average UV index in September
Avalon, TX

Average UV index in September - Avalon, 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
Avalon, TX

Average cloud cover in September - Avalon, TX
  • Average cloud cover in September: 30

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
Avalon, TX

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

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