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 arrival comes with a mild decrease in the average high-temperature, moving subtly from a sweltering 95.9°F (35.5°C) in August to a tropical 87.8°F (31°C). During September, DeSoto's temperature falls to a steady low-temperature average of 70.2°F (21.2°C).Heat index
During September, the heat index is appraised at a fiery hot 96.8°F (36°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In September, the average relative humidity in DeSoto is 64%.Rainfall
In DeSoto, in September, it is raining for 14.3 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 126.7 rainfall days, and 19.57" (497mm) of precipitation is accumulated.Snowfall
In DeSoto, snow does not fall in March through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:02 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:12 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September in DeSoto, Texas, is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
DeSoto, TX
- Average high temperature in September: 87.8°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 (54.7°F).
- Average low temperature in September: 70.2°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (39°F).
Average pressure in September
DeSoto, TX
- Average pressure in September: 29.97"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
DeSoto, TX
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in September
DeSoto, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
DeSoto, TX
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in September
DeSoto, TX
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is September (14.3 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
DeSoto, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
DeSoto, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
DeSoto, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
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 August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
DeSoto, TX
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is September (13.6 days).
Average UV index in September
DeSoto, TX
- Average UV index in September: 6
The months with the highest UV index are May, 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
DeSoto, TX
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
DeSoto, 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).
DeSoto, Texas, USA
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