September weather forecast
Rabb, TX

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Weather in September

September, the first month of the autumn in Rabb, is still a tropical month, with an average temperature ranging between min 76.5°F (24.7°C) and max 89.6°F (32°C).

Temperature

With the arrival of September, Rabb experiences a modest decline in average high-temperatures, transitioning from a sweltering 95°F (35°C) in August to a tropical 89.6°F (32°C). Rabb observes an average nighttime low-temperature of 76.5°F (24.7°C) during the month of September.

Heat index

In September, the heat index is appraised at a scorching 104°F (40°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
The metrics for the heat index are tailored for both shady environments and light winds. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Rabb, the average relative humidity in September is 70%.

Rainfall

September is the month with the most rainfall. Rain falls for 16.5 days and accumulates 2.48" (63mm) of precipitation.

Snowfall

In Rabb, snow does not fall in January, March through December.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:10 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:17 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Rabb, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The average high-temperature and low-temperature during September are 89.6°F (32°C) and 76.5°F (24.7°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is appraised at 104°F (40°C).

What is the average humidity in September?

In September, the average relative humidity is 70%.

What is the wettest month?

September is the month with the most rainfall. Rain falls for 16.5 days and accumulates 2.48" (63mm) of precipitation.

How much does it rain in Rabb in September?

In Rabb, during September, the rain falls for 16.5 days and regularly aggregates up to 2.48" (63mm) of precipitation.

When it does not snow in Rabb?

January, March through December are months without snowfall in Rabb.

What is the average length of the day in September?

In September, the average day length is 12h and 19min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:10 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:17 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September?

In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rabb, TX

Average temperature in September - Rabb, TX
  • Average high temperature in September: 89.6°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (64.9°F).

  • Average low temperature in September: 76.5°F

The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).

Average pressure in September
Rabb, TX

Average pressure in September - Rabb, TX
  • Average pressure in September: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

Average wind speed in September
Rabb, TX

Average wind speed in September - Rabb, TX
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is May (11.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

Average humidity in September
Rabb, TX

Average humidity in September - Rabb, TX
  • Average humidity in September: 70%

The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (66%).

Average rainfall in September
Rabb, TX

Average rainfall in September - Rabb, TX
  • Average rainfall in September: 2.48"

The wettest month (with the highest rainfall) is September (2.48").
The driest month (with the least rainfall) is August (0.71").

Average rainfall days in September
Rabb, TX

Average rainfall days in September - Rabb, TX
  • Average rainfall days in September: 16.5 days

The month with the highest number of rainy days is September (16.5 days).
The month with the least rainy days is August (7.1 days).

Average snowfall days in September
Rabb, TX

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

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in September / Average sunshine in September - Rabb, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Rabb, TX

Average sunshine days in September - Rabb, TX
  • Average sunshine days in September: 11.3 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is September (11.3 days).

Average UV index in September
Rabb, TX

Average UV index in September - Rabb, TX
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
Rabb, TX

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

The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Rabb, TX

Average visibility in September - Rabb, 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).

Rabb, Texas, USA

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