September weather forecast
Slater, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Slater, Texas, with an average temperature varying between 70.7°F (21.5°C) and 87.6°F (30.9°C).

Temperature

The arrival of September is marked by a minor reduction in average high-temperature, sliding from a very hot 95.5°F (35.3°C) in August to a hot 87.6°F (30.9°C). An average low-temperature of 70.7°F (21.5°C) marks the month of September in Slater.

Heat index

The heat index in September is calculated to be a fiery hot 96.8°F (36°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Remember that heat index calculations are made for conditions in the shade with light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in September is 64%.

Rainfall

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

Snowfall

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

Daylight

In Slater, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:08 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:17 pm CDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

In September, the average daily maximum UV index in Slater, Texas, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 during September translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

The average high-temperature, in September, in Slater, is 87.6°F (30.9°C), while the average low-temperature is 70.7°F (21.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 96.8°F (36°C).

What is the average humidity in September?

The average relative humidity in September is 64%.

How much does it rain in September?

In September, the rain falls for 13.8 days. Throughout September, 2.4" (61mm) of precipitation is accumulated.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

What time are sunrise and sunset in September in Slater?

On the first day of September, sunrise is at 7:08 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:17 pm CDT.

How long on average sun shines in September?

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

What is the UV index reading in September?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Slater, TX

Average temperature in September - Slater, 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
Slater, TX

Average pressure in September - Slater, 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
Slater, TX

Average wind speed in September - Slater, 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
Slater, TX

Average humidity in September - Slater, 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
Slater, TX

Average rainfall in September - Slater, 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
Slater, TX

Average rainfall days in September - Slater, 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
Slater, TX

Average snowfall in September - Slater, 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
Slater, TX

Average snowfall days in September - Slater, 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
Slater, TX

Average daylight in September / Average sunshine in September - Slater, 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
Slater, TX

Average sunshine days in September - Slater, 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
Slater, TX

Average UV index in September - Slater, 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
Slater, TX

Average cloud cover in September - Slater, 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
Slater, TX

Average visibility in September - Slater, 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).

Slater, Texas, USA

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