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
South Mountain's transition into September involves a gentle shift in temperature, receding from a sweltering 95.5°F (35.3°C) in August to a tropical 87.6°F (30.9°C). September brings South Mountain a consistent average low-temperature of 70.7°F (21.5°C).Heat index
September's average heat index is computed to be a fiery hot 96.8°F (36°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In South Mountain, the average relative humidity in September is 64%.Rainfall
In South Mountain, in September, during 13.8 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 129.1 rainfall days, and 25.71" (653mm) of precipitation is accumulated.Snowfall
In South Mountain, snow does not fall in April through November.Daylight
In September, the average length of the day in South Mountain is 12h and 21min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:53 pm. On the last day of September, in South Mountain, sunrise is at 7:24 am and sunset at 7:16 pm CDT.
Sunshine
The average sunshine in September in South Mountain is 8.5h.UV index
In September, the average daily maximum UV index in South Mountain is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
How hot does it get in South Mountain in September?
What is the average humidity in September in South Mountain?
How many days does it rain in September in South Mountain?
When it does not snow in South Mountain?
What is the average length of the day in September in South Mountain?
When are sunrise and sunset in September in South Mountain?
How long on average sun shines in September in South Mountain?
How high is the UV index in September in South Mountain?
Average temperature in September
South Mountain, TX
- Average high temperature in September: 87.6°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 (57°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in September
South Mountain, 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 (29.91"Hg).
Average wind speed in September
South Mountain, TX
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is March (11mph).
The calmest month (with the lowest average wind speed) is September (7.3mph).
Average humidity in September
South Mountain, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
South Mountain, TX
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is October (3.86").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in September
South Mountain, TX
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in September
South Mountain, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
South Mountain, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 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
South Mountain, 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: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
South Mountain, TX
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in September
South Mountain, 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
South Mountain, TX
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
South 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).
South Mountain, Texas, USA
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