September weather forecast
Red Rock, TX

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Weather in September

September, the first month of the autumn in Red Rock, is also a hot month, with temperature in the range of an average high of 88.9°F (31.6°C) and an average low of 71.1°F (21.7°C).

Temperature

With the arrival of September, Red Rock notices a mild change in the average high-temperature, sliding from August's very hot 96.8°F (36°C) to a tropical 88.9°F (31.6°C). In Red Rock, the average temperature during the nights of September drops to a pleasant 71.1°F (21.7°C).

Heat index

The average heat index in September is calculated to be a fiery hot 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

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

Rainfall

In September, the rain falls for 15.5 days. Throughout September, 2.28" (58mm) of precipitation is accumulated. In Red Rock, during the entire year, the rain falls for 141.3 days and collects up to 18.86" (479mm) of precipitation.

Snowfall

In Red Rock, snow does not fall in February through November.

Daylight

The average length of the day in September in Red Rock, Texas, is 12h and 20min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:16 pm CDT.

Sunshine

The average sunshine in September in Red Rock, Texas, is 8.5h.

UV index

In Red Rock, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

Is it hot in Red Rock during September?

The high-temperature, in September, in Red Rock, is 88.9°F (31.6°C), while the low-temperature averages to 71.1°F (21.7°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is calculated to be 102.2°F (39°C).

What is the average humidity in September in Red Rock?

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

How much does it rain in Red Rock in September?

In Red Rock, in September, during 15.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When it does not snow in Red Rock?

February through November are months without snowfall in Red Rock, Texas.

What is the average length of the day in September in Red Rock?

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

What time are sunrise and sunset in September in Red Rock?

In September, on the first day of the month, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of the month, in Red Rock, sunrise is at 7:22 am and sunset at 7:16 pm CDT.

How many hours of sunshine does Red Rock have in September?

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

How high is the UV index in September in Red Rock?

In September, the average daily maximum UV index in Red Rock, Texas, is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Red Rock, TX

Average temperature in September - Red Rock, TX
  • Average high temperature in September: 88.9°F

The warmest month (with the highest average high temperature) is August (96.8°F).
The month with the lowest average high temperature is January (59°F).

  • Average low temperature in September: 71.1°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).

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Average pressure in September
Red Rock, TX

Average pressure in September - Red Rock, 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 (29.92"Hg).

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Average wind speed in September
Red Rock, TX

Average wind speed in September - Red Rock, TX
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is September (6mph).

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Average humidity in September
Red Rock, TX

Average humidity in September - Red Rock, TX
  • Average humidity in September: 70%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (63%).

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Average rainfall in September
Red Rock, TX

Average rainfall in September - Red Rock, TX
  • Average rainfall in September: 2.28"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (0.71").

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Average rainfall days in September
Red Rock, TX

Average rainfall days in September - Red Rock, TX
  • Average rainfall days in September: 15.5 days

The month with the highest number of rainy days is September (15.5 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in September
Red Rock, TX

Average snowfall in September - Red Rock, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Red Rock, TX

Average snowfall days in September - Red Rock, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Red Rock, TX

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

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in September: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

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Average sunshine days in September
Red Rock, TX

Average sunshine days in September - Red Rock, TX
  • Average sunshine days in September: 12.3 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in September
Red Rock, TX

Average UV index in September - Red Rock, TX
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Red Rock, TX

Average cloud cover in September - Red Rock, TX
  • Average cloud cover in September: 33

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in September
Red Rock, TX

Average visibility in September - Red Rock, 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).

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Red Rock, Texas, USA

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