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
As August makes way for September, Mountain City's average high-temperature eases from a torrid 95.9°F (35.5°C) to a tropical 88°F (31.1°C). Nighttime temperature lowers to an average of 70.5°F (21.4°C) in September.Heat index
In September, the heat index is appraised at a torrid 100.4°F (38°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Know that the heat index computations account for shaded terrains and slight winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In September, the average relative humidity is 70%.Rainfall
In Mountain City, in September, it is raining for 16.3 days, with typically 2.64" (67mm) of accumulated precipitation. In Mountain City, during the entire year, the rain falls for 140.4 days and collects up to 19.37" (492mm) of precipitation.Snowfall
In Mountain City, snow does not fall in February through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:53 pm. On the last day of September, in Mountain City, Texas, sunrise is at 7:24 am and sunset at 7:17 pm CDT.
Sunshine
In September, the average sunshine in Mountain City, Texas, is 8.2h.UV index
In September, the average daily maximum UV index in Mountain City is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during September translates into the following guidance:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
How hot is it in Mountain City in September?
What is the average humidity in September in Mountain City?
How many days does it rain in September in Mountain City?
When it does not snow in Mountain City?
What is the average length of the day in September in Mountain City?
When is the sunrise / sunset in September in Mountain City?
How long on average sun shines in September in Mountain City?
What is the UV index reading in September in Mountain City?
Average temperature in September
Mountain City, TX
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (59.4°F).
- Average low temperature in September: 70.5°F
The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).
Average pressure in September
Mountain City, TX
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.91"Hg).
Average wind speed in September
Mountain City, TX
- Average wind speed in September: 6.1mph
The windiest months (with the highest average wind speed) are February and March (9.1mph).
The calmest month (with the lowest average wind speed) is September (6.1mph).
Average humidity in September
Mountain City, TX
- Average humidity in September: 70%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Mountain City, TX
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (3.58").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in September
Mountain City, TX
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is September (16.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Mountain City, 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").
Average snowfall days in September
Mountain City, 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 and October (0 days).
Average daylight in September /
Average sunshine in September
Mountain City, 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 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Mountain City, TX
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is January (20.2 days).
The months with the least sunshine days are May and June (11.5 days).
Average UV index in September
Mountain City, 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
Mountain City, TX
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Mountain City, 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).
Mountain City, Texas, USA
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