September weather forecast
Lake Dallas, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Lake Dallas, Texas, with an average temperature ranging between min 70.7°F (21.5°C) and max 88°F (31.1°C).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a fiery hot 96.3°F (35.7°C) in August to a hot 88°F (31.1°C). Lake Dallas's temperature drops to an average low of 70.7°F (21.5°C) during the nights of September.

Heat index

During September, the heat index is evaluated at a torrid 95°F (35°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Lake Dallas, the average relative humidity in September is 61%.

Rainfall

In Lake Dallas, during September, the rain falls for 14 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, there are 132.1 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

In Lake Dallas, snow does not fall in April through October.

Daylight

The average length of the day in September in Lake Dallas is 12h and 22min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:13 pm CDT.

Sunshine

In September, the average sunshine in Lake Dallas is 8.5h.

UV index

In September, the average daily maximum UV index in Lake Dallas is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 6 during September, leads to the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

How hot is it in Lake Dallas in September?

In September, the average high-temperature and low-temperature in Lake Dallas are 88°F (31.1°C) and 70.7°F (21.5°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 95°F (35°C).

What is the average humidity in September in Lake Dallas?

In Lake Dallas, the average relative humidity in September is 61%.

How many days does it rain in September in Lake Dallas?

In Lake Dallas, Texas, in September, it is raining for 14 days, with typically 2.64" (67mm) of accumulated precipitation.

When it does not snow in Lake Dallas?

April through October are months without snowfall.

How many hours of daylight does Lake Dallas have in September?

In Lake Dallas, the average day length in September is 12h and 22min.

When are sunrise and sunset in September in Lake Dallas?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 7:52 pm. On the last day of the month, in Lake Dallas, Texas, sunrise is at 7:22 am and sunset at 7:13 pm CDT.

How many hours of sunshine does Lake Dallas have in September?

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

How high is the UV index in September in Lake Dallas?

The average daily maximum UV index in September in Lake Dallas, Texas, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Lake Dallas, TX

Average temperature in September - Lake Dallas, TX
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in September: 70.7°F

The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

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Average pressure in September
Lake Dallas, TX

Average pressure in September - Lake Dallas, 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 (29.9"Hg).

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Average wind speed in September
Lake Dallas, TX

Average wind speed in September - Lake Dallas, TX
  • Average wind speed in September: 6.8mph

The windiest months (with the highest average wind speed) are March and April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

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Average humidity in September
Lake Dallas, TX

Average humidity in September - Lake Dallas, TX
  • Average humidity in September: 61%

The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (53%).

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Average rainfall in September
Lake Dallas, TX

Average rainfall in September - Lake Dallas, TX
  • Average rainfall in September: 2.64"

The wettest month (with the highest rainfall) is October (3.74").
The driest months (with the least rainfall) are January and February (1.57").

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Average rainfall days in September
Lake Dallas, TX

Average rainfall days in September - Lake Dallas, TX
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (6.6 days).

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Average snowfall in September
Lake Dallas, TX

Average snowfall in September - Lake Dallas, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Lake Dallas, TX

Average snowfall days in September - Lake Dallas, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Lake Dallas, TX

Average daylight in September / Average sunshine in September - Lake Dallas, 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 months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Lake Dallas, TX

Average sunshine days in September - Lake Dallas, TX
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is September (14.9 days).

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Average UV index in September
Lake Dallas, TX

Average UV index in September - Lake Dallas, TX
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Lake Dallas, TX

Average cloud cover in September - Lake Dallas, TX
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in September
Lake Dallas, TX

Average visibility in September - Lake Dallas, 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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Lake Dallas, Texas, USA

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