September weather forecast
Cornudas, TX

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Weather in September

The first month of the autumn, September, is still a warm month in Cornudas, Texas, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 64.9°F (18.3°C).

Temperature

The average high-temperature shows a slight dip in September, from August's tropical 89.4°F (31.9°C) to a warm 82°F (27.8°C). Nighttime temperature experiences an average drop to a comfortable 64.9°F (18.3°C) in September.

Heat index

In September, the heat index is calculated to be 82.4°F (28°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 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.

Humidity

In September, the average relative humidity is 50%.

Rainfall

The month with the most rainfall is September, when the rain falls for 13.5 days and typically aggregates up to 2.13" (54mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of the month, sunrise is at 6:37 am and sunset at 7:25 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:47 pm MDT.

Sunshine

In September, the average sunshine is 9.6h.

UV index

In Cornudas, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, the maximum UV index of 5 transforms into these recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The high-temperature in Cornudas, Texas, during September is 82°F (27.8°C) and the low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in September is calculated to be 82.4°F (28°C).

What is the average humidity in September in Cornudas?

In Cornudas, the average relative humidity in September is 50%.

What is the rainiest month?

The month with the most rainfall is September, when the rain falls for 13.5 days and typically aggregates up to 2.13" (54mm) of precipitation.

How many days does it rain in September?

In September, the rain falls for 13.5 days. Throughout September, 2.13" (54mm) of precipitation is accumulated.

When it does not snow?

In Cornudas, snow does not fall in April through October.

What is the average length of the day in September?

In Cornudas, the average day length in September is 12h and 21min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:47 pm MDT.

How long on average sun shines in September?

In Cornudas, the average sunshine duration in September is 9.6h.

What is the UV index intensity in September?

In Cornudas, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from 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
Cornudas, TX

Average temperature in September - Cornudas, TX
  • Average high temperature in September: 82°F

The warmest month (with the highest average high temperature) is June (91.4°F).
The months with the lowest average high temperature are January and December (53.6°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in September
Cornudas, TX

Average pressure in September - Cornudas, TX
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).

Average wind speed in September
Cornudas, TX

Average wind speed in September - Cornudas, TX
  • Average wind speed in September: 6.9mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in September
Cornudas, TX

Average humidity in September - Cornudas, TX
  • Average humidity in September: 50%

The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is April (26%).

Average rainfall in September
Cornudas, TX

Average rainfall in September - Cornudas, TX
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is September (2.13").
The driest months (with the least rainfall) are January and February (0.24").

Average rainfall days in September
Cornudas, TX

Average rainfall days in September - Cornudas, TX
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is August (15.3 days).
The month with the least rainy days is February (2.2 days).

Average snowfall in September
Cornudas, TX

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

The month with the highest snowfall is December (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Cornudas, TX

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

The month with the highest number of snowfall days is December (2.4 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
Cornudas, TX

Average daylight in September / Average sunshine in September - Cornudas, 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: 9h and 4min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 48min).

Average sunshine days in September
Cornudas, TX

Average sunshine days in September - Cornudas, TX
  • Average sunshine days in September: 13.2 days

The month with the most sunshine days is January (26.5 days).
The month with the least sunshine days is July (10.9 days).

Average UV index in September
Cornudas, TX

Average UV index in September - Cornudas, TX
  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).

Average cloud cover in September
Cornudas, TX

Average cloud cover in September - Cornudas, TX
  • Average cloud cover in September: 18

The months with the most cloud cover are September and December (Cloud cover 18).
The months with the least cloud cover are May and June (Cloud cover 10).

Average visibility in September
Cornudas, TX

Average visibility in September - Cornudas, 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).

Cornudas, Texas, USA

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