September weather forecast
Willow Park, TX

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Weather in September

September, the first month of the autumn in Willow Park, is still a tropical month, with an average temperature ranging between max 86.9°F (30.5°C) and min 68.4°F (20.2°C).

Temperature

The onset of September aligns with a soft reduction in the average high-temperature, gently falling from a very hot 95.2°F (35.1°C) in August to a hot 86.9°F (30.5°C). Nighttime temperatures consistently average an agreeable 68.4°F (20.2°C) during September.

Heat index

September's heat index is computed to be a fiery hot 95°F (35°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in September is 64%.

Rainfall

In September, in Willow Park, the rain falls for 13.4 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. In Willow Park, during the entire year, the rain falls for 127.7 days and collects up to 26.46" (672mm) of precipitation.

Snowfall

In Willow Park, Texas, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 7:05 am and sunset at 7:54 pm. On the last day of September, in Willow Park, sunrise is at 7:24 am and sunset at 7:16 pm CDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in September in Willow Park is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 6 suggests this advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September in Willow Park?

During September, Willow Park experiences an average high-temperature of 86.9°F (30.5°C) and a low-temperature of 68.4°F (20.2°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 95°F (35°C).

What is the average humidity in September in Willow Park?

The average relative humidity in September is 64%.

How many days does it rain in September in Willow Park?

In September, in Willow Park, Texas, the rain falls for 13.4 days. Throughout September, 2.6" (66mm) of precipitation is accumulated.

When it does not snow in Willow Park?

April through October are months without snowfall in Willow Park, Texas.

What is the average length of the day in September in Willow Park?

In September, the average day length in Willow Park, Texas, is 12h and 22min.

When is the sunrise / sunset in September in Willow Park?

On the first day of September in Willow Park, Texas, sunrise is at 7:05 am and sunset at 7:54 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 Willow Park?

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

How high is the UV index in September in Willow Park?

The average daily maximum UV index in September in Willow Park, Texas, is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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
Willow Park, TX

Average temperature in September - Willow Park, TX
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in September: 68.4°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

Average pressure in September
Willow Park, TX

Average pressure in September - Willow Park, 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 (29.89"Hg).

Average wind speed in September
Willow Park, TX

Average wind speed in September - Willow Park, TX
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is September (7mph).

Average humidity in September
Willow Park, TX

Average humidity in September - Willow Park, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Willow Park, TX

Average rainfall in September - Willow Park, TX
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is October (3.58").
The driest month (with the least rainfall) is January (1.3").

Average rainfall days in September
Willow Park, TX

Average rainfall days in September - Willow Park, TX
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in September
Willow Park, TX

Average snowfall in September - Willow Park, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Willow Park, TX

Average snowfall days in September - Willow Park, 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 and October (0 days).

Average daylight in September /
Average sunshine in September
Willow Park, TX

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

Average sunshine days in September
Willow Park, TX

Average sunshine days in September - Willow Park, TX
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is September (14.5 days).

Average UV index in September
Willow Park, TX

Average UV index in September - Willow Park, 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).

Average cloud cover in September
Willow Park, TX

Average cloud cover in September - Willow Park, TX
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Willow Park, TX

Average visibility in September - Willow Park, 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).

Willow Park, Texas, USA

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