September weather forecast
Lexington, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Lexington, Texas, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 88.9°F (31.6°C).

Temperature

The start of September involves a subtle temperature drop, shifting from a torrid 96.4°F (35.8°C) in August to a tropical 88.9°F (31.6°C). Lexington, in September, experiences an average temperature of 70.7°F (21.5°C) at night.

Heat index

During September, the heat index is calculated to be a sweltering 102.2°F (39°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Lexington, the average relative humidity in September is 69%.

Rainfall

In Lexington, Texas, in September, it is raining for 14.2 days, with typically 1.93" (49mm) of accumulated precipitation. In Lexington, during the entire year, the rain falls for 128.2 days and collects up to 18.74" (476mm) of precipitation.

Snowfall

March through December are months without snowfall in Lexington, Texas.

Daylight

In September, the average length of the day is 12h and 20min.
On the first day of the month, sunrise is at 7:05 am and sunset at 7:50 pm. On the last day of September, in Lexington, Texas, sunrise is at 7:21 am and sunset at 7:14 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

How hot is September in Lexington?

In Lexington, in September, the average high-temperature is 88.9°F (31.6°C), and the average low-temperature is 70.7°F (21.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in September is calculated to be 102.2°F (39°C).

What is the average humidity in September in Lexington?

In September, the average relative humidity in Lexington is 69%.

How many days does it rain in September in Lexington?

In Lexington, during September, the rain falls for 14.2 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Lexington?

March through December are months without snowfall.

What is the average length of the day in September in Lexington?

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

When is the sunrise / sunset in September in Lexington?

On the first day of September in Lexington, Texas, sunrise is at 7:05 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:14 pm CDT.

How many hours of sunshine does Lexington have in September?

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

How high is the UV index in September in Lexington?

The average daily maximum UV index in September in Lexington is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Lexington, TX

Average temperature in September - Lexington, TX
  • Average high temperature in September: 88.9°F

The warmest month (with the highest average high temperature) is August (96.4°F).
The month with the lowest average high temperature is January (58.1°F).

  • Average low temperature in September: 70.7°F

The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (42.3°F).

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Average pressure in September
Lexington, TX

Average pressure in September - Lexington, 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 (29.92"Hg).

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Average wind speed in September
Lexington, TX

Average wind speed in September - Lexington, TX
  • Average wind speed in September: 6.3mph

The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest month (with the lowest average wind speed) is September (6.3mph).

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Average humidity in September
Lexington, TX

Average humidity in September - Lexington, TX
  • Average humidity in September: 69%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in September
Lexington, TX

Average rainfall in September - Lexington, TX
  • Average rainfall in September: 1.93"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is February (0.71").

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Average rainfall days in September
Lexington, TX

Average rainfall days in September - Lexington, TX
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is September (14.2 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in September
Lexington, TX

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

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

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Average snowfall days in September
Lexington, TX

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

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in September
Lexington, TX

Average sunshine days in September - Lexington, TX
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is September (13.5 days).

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Average UV index in September
Lexington, TX

Average UV index in September - Lexington, 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).

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Average cloud cover in September
Lexington, TX

Average cloud cover in September - Lexington, TX
  • Average cloud cover in September: 31

The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Lexington, TX

Average visibility in September - Lexington, 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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Lexington, Texas, USA

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