September weather forecast
Northlake, TX

Share

Weather in September

September, the first month of the autumn in Northlake, is still a tropical month, with an average temperature varying between 87.4°F (30.8°C) and 69.4°F (20.8°C).

Temperature

September marks a gentle change in average high-temperature, declining from August's torrid 95.5°F (35.3°C) to a tropical 87.4°F (30.8°C). Northlake's temperature tends to fall to an average low of 69.4°F (20.8°C) during the nights of September.

Heat index

During September, the heat index is appraised at a sweltering 95°F (35°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. 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 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in September in Northlake is 63%.

Rainfall

In Northlake, in September, during 14 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 135.5 rainfall days, and 29.45" (748mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Northlake, Texas, the average length of the day in September is 12h and 22min.
On the first day of September in Northlake, sunrise is at 7:03 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm CDT.

Sunshine

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

UV index

The average daily maximum UV index in September in Northlake is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during September morphs into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Northlake during September?

September temperatures in Northlake, Texas, vary between a high-temperature of 87.4°F (30.8°C) and a low-temperature of 69.4°F (20.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 95°F (35°C).

What is the average humidity in September in Northlake?

In Northlake, the average relative humidity in September is 63%.

How much does it rain in Northlake in September?

In September, the rain falls for 14 days. Throughout September, 2.83" (72mm) of precipitation is accumulated.

When it does not snow in Northlake?

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

How many hours of daylight does Northlake have in September?

The average day length in September is 12h and 22min.

When is the sunrise / sunset in September in Northlake?

On the first day of September in Northlake, Texas, sunrise is at 7:03 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm CDT.

How long on average sun shines in September in Northlake?

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

What is the UV index reading in September in Northlake?

In September, the average daily maximum UV index in Northlake, Texas, is 6. A UV Index value 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
Northlake, TX

Average temperature in September - Northlake, TX
  • Average high temperature in September: 87.4°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 (54.3°F).

  • Average low temperature in September: 69.4°F

The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).

Average pressure in September
Northlake, TX

Average pressure in September - Northlake, 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).

Average wind speed in September
Northlake, TX

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

The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

Average humidity in September
Northlake, TX

Average humidity in September - Northlake, TX
  • Average humidity in September: 63%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Northlake, TX

Average rainfall in September - Northlake, TX
  • Average rainfall in September: 2.83"

The wettest months (with the highest rainfall) are May and October (3.9").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Northlake, TX

Average rainfall days in September - Northlake, TX
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in September
Northlake, TX

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

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Northlake, TX

Average snowfall days in September - Northlake, 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
Northlake, TX

Average daylight in September / Average sunshine in September - Northlake, 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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days in September
Northlake, TX

Average sunshine days in September - Northlake, TX
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is January (23.5 days).
The months with the least sunshine days are May and September (14.5 days).

Average UV index in September
Northlake, TX

Average UV index in September - Northlake, 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
Northlake, TX

Average cloud cover in September - Northlake, TX
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Northlake, TX

Average visibility in September - Northlake, 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).

Northlake, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location