September weather forecast
Mound, TX

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Weather in September

September, the first month of the autumn in Mound, is still a tropical month, with an average temperature fluctuating between 70.7°F (21.5°C) and 87.6°F (30.9°C).

Temperature

September indicates a minor shift in the average high-temperature, from August's sweltering 95.5°F (35.3°C) to a hot 87.6°F (30.9°C). Mound records an average temperature drop to a pleasant 70.7°F (21.5°C) in September.

Heat index

The heat index for September is evaluated at a torrid 96.8°F (36°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in September is 64%.

Rainfall

In Mound, in September, during 13.8 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Mound, during the entire year, the rain falls for 129.1 days and collects up to 25.71" (653mm) of precipitation.

Snowfall

April through November are months without snowfall in Mound.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of the month, sunrise is at 7:06 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

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 during September translates into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The average high-temperature and low-temperature during September are 87.6°F (30.9°C) and 70.7°F (21.5°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in September is evaluated at 96.8°F (36°C).

What is the average humidity in September in Mound?

The average relative humidity in September in Mound is 64%.

How many days does it rain in September?

In Mound, in September, it is raining for 13.8 days, with typically 2.4" (61mm) of accumulated precipitation.

When it does not snow?

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

How many hours of daylight does Mound have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 7:06 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 many hours of sunshine does Mound have in September?

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

What is the UV index intensity in September?

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Mound, TX

Average temperature in September - Mound, 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 (57°F).

  • Average low temperature in September: 70.7°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 (40.6°F).

Average pressure in September
Mound, TX

Average pressure in September - Mound, 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
Mound, TX

Average wind speed in September - Mound, TX
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is March (11mph).
The calmest month (with the lowest average wind speed) is September (7.3mph).

Average humidity in September
Mound, TX

Average humidity in September - Mound, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).

Average rainfall in September
Mound, TX

Average rainfall in September - Mound, TX
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is October (3.86").
The driest month (with the least rainfall) is November (1.18").

Average rainfall days in September
Mound, TX

Average rainfall days in September - Mound, TX
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in September
Mound, TX

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

The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Mound, TX

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

The month with the highest number of snowfall days is February (1.2 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
Mound, TX

Average daylight in September / Average sunshine in September - Mound, 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 30min).

Average sunshine days in September
Mound, TX

Average sunshine days in September - Mound, TX
  • Average sunshine days in September: 13.9 days

The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.5 days).

Average UV index in September
Mound, TX

Average UV index in September - Mound, TX
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in September
Mound, TX

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

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in September
Mound, TX

Average visibility in September - Mound, 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).

Mound, Texas, USA

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