September weather forecast
Wells Branch, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Wells Branch, Texas, with an average temperature varying between 88.2°F (31.2°C) and 70.9°F (21.6°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from a very hot 96.1°F (35.6°C) in August to a tropical 88.2°F (31.2°C). Nighttime temperature dips to a mean of 70.9°F (21.6°C) during September.

Heat index

Throughout September, the heat index is calculated to be a fiery hot 98.6°F (37°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In Wells Branch, the average relative humidity in September is 67%.

Rainfall

In Wells Branch, in September, during 15.1 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Wells Branch, Texas, during the entire year, the rain falls for 139.3 days and collects up to 26.18" (665mm) of precipitation.

Snowfall

March through December are months without snowfall.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:16 pm CDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In Wells Branch, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Fend off overexposure. Sun protection is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

Wells Branch in September has an average high-temperature of 88.2°F (31.2°C) and an average low-temperature of 70.9°F (21.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 98.6°F (37°C).

What is the average humidity in September?

The average relative humidity in September is 67%.

How much does it rain in September?

In Wells Branch, in September, it is raining for 15.1 days, with typically 3.11" (79mm) of accumulated precipitation.

When it does not snow?

In Wells Branch, snow does not fall in March through December.

How many hours of daylight does Wells Branch have in September?

The average day length in September is 12h and 20min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:07 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:16 pm CDT.

How long on average sun shines in September?

In Wells Branch, the average sunshine duration in September is 8.3h.

What is the UV index reading in September?

The average daily maximum UV index in September is 6. A UV Index reading 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
Wells Branch, TX

Average temperature in September - Wells Branch, TX
  • Average high temperature in September: 88.2°F

The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in September: 70.9°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 (42.4°F).

Average pressure in September
Wells Branch, TX

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

Average wind speed in September
Wells Branch, TX

Average wind speed in September - Wells Branch, TX
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).

Average humidity in September
Wells Branch, TX

Average humidity in September - Wells Branch, TX
  • Average humidity in September: 67%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (59%).

Average rainfall in September
Wells Branch, TX

Average rainfall in September - Wells Branch, TX
  • Average rainfall in September: 3.11"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in September
Wells Branch, TX

Average rainfall days in September - Wells Branch, TX
  • Average rainfall days in September: 15.1 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in September
Wells Branch, TX

Average snowfall in September - Wells Branch, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Wells Branch, TX

Average snowfall days in September - Wells Branch, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Wells Branch, TX

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

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Wells Branch, TX

Average sunshine days in September - Wells Branch, TX
  • Average sunshine days in September: 13.3 days

The month with the most sunshine days is January (21.1 days).
The months with the least sunshine days are April, May and September (13.3 days).

Average UV index in September
Wells Branch, TX

Average UV index in September - Wells Branch, 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).

Average cloud cover in September
Wells Branch, TX

Average cloud cover in September - Wells Branch, TX
  • Average cloud cover in September: 32

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in September
Wells Branch, TX

Average visibility in September - Wells Branch, 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).

Wells Branch, Texas, USA

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