September weather forecast
Pierce, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Pierce, Texas, with temperature in the range of an average low of 72.7°F (22.6°C) and an average high of 88.2°F (31.2°C).

Temperature

In Pierce, entering September brings a subtle temperature decrement, reducing from August's 93.9°F (34.4°C) to a still tropical 88.2°F (31.2°C). The temperature in Pierce lowers to an average of 72.7°F (22.6°C) during September nights.

Heat index

The average heat index in September is evaluated at a blisteringly hot 104°F (40°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In Pierce, during September, the rain falls for 16.6 days and regularly aggregates up to 2.95" (75mm) of precipitation. Throughout the year, there are 162.4 rainfall days, and 27.05" (687mm) of precipitation is accumulated.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in September in Pierce is 12h and 19min.
On the first day of September, sunrise is at 7:02 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:11 pm CDT.

Sunshine

In September, the average sunshine in Pierce is 8.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Pierce during September?

September temperatures vary between a high-temperature of 88.2°F (31.2°C) and a low-temperature of 72.7°F (22.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 104°F (40°C).

What is the average humidity in September in Pierce?

In September, the average relative humidity in Pierce is 76%.

How much does it rain in Pierce in September?

In September, in Pierce, the rain falls for 16.6 days. Throughout September, 2.95" (75mm) of precipitation is accumulated.

When it does not snow in Pierce?

February through November are months without snowfall in Pierce.

How many hours of daylight does Pierce have in September?

In September, the average day length in Pierce, Texas, is 12h and 19min.

When are sunrise and sunset in September in Pierce?

On the first day of September in Pierce, Texas, sunrise is at 7:02 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:11 pm CDT.

How long on average sun shines in September in Pierce?

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

How high is the UV index in September in Pierce?

The average daily maximum UV index in September in Pierce, Texas, is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe 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
Pierce, TX

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

The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (61.3°F).

  • Average low temperature in September: 72.7°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (46°F).

Average pressure in September
Pierce, TX

Average pressure in September - Pierce, TX
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Pierce, TX

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

The windiest month (with the highest average wind speed) is April (9mph).
The calmest month (with the lowest average wind speed) is September (6mph).

Average humidity in September
Pierce, TX

Average humidity in September - Pierce, TX
  • Average humidity in September: 76%

The months with the highest relative humidity are February, March, May and June (78%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
Pierce, TX

Average rainfall in September - Pierce, TX
  • Average rainfall in September: 2.95"

The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is February (1.42").

Average rainfall days in September
Pierce, TX

Average rainfall days in September - Pierce, TX
  • Average rainfall days in September: 16.6 days

The month with the highest number of rainy days is September (16.6 days).
The month with the least rainy days is October (12.1 days).

Average snowfall in September
Pierce, TX

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

The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Pierce, TX

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

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Pierce, TX

Average sunshine days in September - Pierce, TX
  • Average sunshine days in September: 11.6 days

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is September (11.6 days).

Average UV index in September
Pierce, TX

Average UV index in September - Pierce, 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, February, November and December (UV index 4).

Average cloud cover in September
Pierce, TX

Average cloud cover in September - Pierce, TX
  • Average cloud cover in September: 32

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
Pierce, TX

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

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

Pierce, Texas, USA

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