September weather forecast
Glen Rose, TX

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Weather in September

The first month of the autumn, September, is still a tropical month in Glen Rose, Texas, with an average temperature varying between 68.9°F (20.5°C) and 87.3°F (30.7°C).

Temperature

The arrival of September is marked by a minor reduction in average high-temperature, sliding from a sweltering 95.5°F (35.3°C) in August to a tropical 87.3°F (30.7°C). Glen Rose's September nights cool down to an average low-temperature of 68.9°F (20.5°C).

Heat index

Throughout September, the heat index is appraised at a fiery hot 95°F (35°C). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. 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 highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

The average relative humidity in September in Glen Rose is 64%.

Rainfall

In Glen Rose, in September, it is raining for 11.6 days, with typically 1.77" (45mm) of accumulated precipitation. In Glen Rose, Texas, during the entire year, the rain falls for 119.5 days and collects up to 23.39" (594mm) of precipitation.

Snowfall

In Glen Rose, snow does not fall in March through November.

Daylight

In Glen Rose, the average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:16 pm CDT.

Sunshine

In Glen Rose, 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 exposure to the Sun's UV radiation for the average person.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Glen Rose in September?

The average high-temperature, in September, in Glen Rose, is 87.3°F (30.7°C), while the average low-temperature is 68.9°F (20.5°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is appraised at 95°F (35°C).

What is the average humidity in September in Glen Rose?

In September, the average relative humidity in Glen Rose, Texas, is 64%.

How many days does it rain in September in Glen Rose?

In Glen Rose, Texas, during September, the rain falls for 11.6 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Glen Rose?

March through November are months without snowfall in Glen Rose.

How many hours of daylight does Glen Rose have in September?

The average day length in September is 12h and 21min.

What time are sunrise and sunset in September in Glen Rose?

On the first day of September in Glen Rose, Texas, sunrise is at 7:06 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:16 pm CDT.

How many hours of sunshine does Glen Rose have in September?

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

What is the UV index reading in September in Glen Rose?

The average daily maximum UV index in September in Glen Rose, Texas, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unprotected exposure to 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
Glen Rose, TX

Average temperature in September - Glen Rose, TX
  • Average high temperature in September: 87.3°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 (55.9°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

Average pressure in September
Glen Rose, TX

Average pressure in September - Glen Rose, 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 (29.9"Hg).

Average wind speed in September
Glen Rose, TX

Average wind speed in September - Glen Rose, TX
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is September (7mph).

Average humidity in September
Glen Rose, TX

Average humidity in September - Glen Rose, TX
  • Average humidity in September: 64%

The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (55%).

Average rainfall in September
Glen Rose, TX

Average rainfall in September - Glen Rose, TX
  • Average rainfall in September: 1.77"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.18").

Average rainfall days in September
Glen Rose, TX

Average rainfall days in September - Glen Rose, TX
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in September
Glen Rose, TX

Average snowfall in September - Glen Rose, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Glen Rose, TX

Average snowfall days in September - Glen Rose, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Glen Rose, TX

Average daylight in September / Average sunshine in September - Glen Rose, 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: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September
Glen Rose, TX

Average sunshine days in September - Glen Rose, TX
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is May (14.2 days).

Average UV index in September
Glen Rose, TX

Average UV index in September - Glen Rose, 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
Glen Rose, TX

Average cloud cover in September - Glen Rose, TX
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in September
Glen Rose, TX

Average visibility in September - Glen Rose, 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).

Glen Rose, Texas, USA

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