September weather forecastSand Flats, TX
September
Weather in September
September, the first month of the autumn in Sand Flats, is also a hot month, with an average temperature ranging between min 68.9°F (20.5°C) and max 88.7°F (31.5°C).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's fiery hot 95.9°F (35.5°C) to a tropical 88.7°F (31.5°C). Nighttime temperatures hover around an average low of 68.9°F (20.5°C) in September.Heat index
The heat index in September is appraised at a very hot 102.2°F (39°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Sand Flats, the average relative humidity in September is 70%.Rainfall
In September, the rain falls for 15.5 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 149.4 rainfall days, and 30" (762mm) of precipitation is accumulated.Snowfall
January, February and September are months with snowfall. September is the first month it typically snows in Sand Flats. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Sand Flats, during the entire year, snow falls for 1.1 days and aggregates up to 0.47" (12mm) of snow.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:46 pm. On the last day of September, in Sand Flats, sunrise is at 7:16 am and sunset at 7:09 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sand Flats, TX
- Average high temperature in September: 88.7°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 (56.8°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (73.9°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in September
Sand Flats, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Sand Flats, TX
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in September
Sand Flats, 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 (65%).
Average rainfall in September
Sand Flats, TX
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in September
Sand Flats, 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 (9.3 days).
Average snowfall in September
Sand Flats, TX
- Average snowfall in September: 0.04"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, October, November and December (0").
Average snowfall days in September
Sand Flats, TX
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are March, April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sand Flats, TX
- Average daylight in September: 12h and 18min
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 24min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Sand Flats, TX
- Average sunshine days in September: 12.6 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is September (12.6 days).
Average UV index in September
Sand Flats, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Sand Flats, TX
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Sand Flats, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
