Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a sweltering 95.2°F (35.1°C) in August to a tropical 87.3°F (30.7°C). In the month of September, Round Mountain witnesses a consistent average low-temperature of 68.9°F (20.5°C).Heat index
For most parts of September, the heat index is appraised at a torrid 96.8°F (36°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In Round Mountain, the average relative humidity in September is 66%.Rainfall
In Round Mountain, in September, during 13 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 115.1 rainfall days, and 16.85" (428mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in Round Mountain, Texas.Daylight
In September, the average length of the day in Round Mountain is 12h and 20min.On the first day of September in Round Mountain, sunrise is at 7:10 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:19 pm CDT.
Sunshine
The average sunshine in September in Round Mountain, Texas, is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Round Mountain during September?
What is the average humidity in September in Round Mountain?
How many days does it rain in September in Round Mountain?
When it does not snow in Round Mountain?
How many hours of daylight does Round Mountain have in September?
What time are sunrise and sunset in September in Round Mountain?
How long on average sun shines in September in Round Mountain?
What is the UV index intensity in September in Round Mountain?
Average temperature in September
Round Mountain, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (59.4°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (41.2°F).
Average pressure in September
Round Mountain, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Round Mountain, TX
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in September
Round Mountain, TX
- Average humidity in September: 66%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Round Mountain, TX
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (3.62").
The driest months (with the least rainfall) are February, November and December (0.71").
Average rainfall days in September
Round Mountain, TX
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
Round Mountain, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Round Mountain, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Round Mountain, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are November and December (Average sunshine: 5h and 42min).
Average sunshine days in September
Round Mountain, TX
- Average sunshine days in September: 15 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in September
Round Mountain, 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).
Average cloud cover in September
Round Mountain, TX
- Average cloud cover in September: 31
The month with the most cloud cover is May (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Round Mountain, 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).
Round Mountain, Texas, USA
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