September weather forecastDeanville, TX
September
Weather in September
September, the first month of the autumn in Deanville, is still a hot month, with an average temperature fluctuating between 88.7°F (31.5°C) and 70.5°F (21.4°C).Temperature
With the onset of September, Deanville experiences a modest temperature adjustment, with the average high-temperature gently receding from a torrid 95.7°F (35.4°C) in August to a hot 88.7°F (31.5°C). During the month of September, the nighttime temperature falls to an average of 70.5°F (21.4°C).Heat index
September's average heat index is evaluated at a torrid 102.2°F (39°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
In September, the average relative humidity in Deanville, Texas, is 71%.Rainfall
In Deanville, in September, it is raining for 13.5 days, with typically 1.69" (43mm) of accumulated precipitation. In Deanville, during the entire year, the rain falls for 126.1 days and collects up to 16.14" (410mm) of precipitation.Snowfall
In Deanville, snow does not fall in March through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 7:04 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:13 pm CDT.
Sunshine
In September, the average sunshine 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 hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deanville, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (95.7°F).
The month with the lowest average high temperature is January (58.5°F).
- Average low temperature in September: 70.5°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Deanville, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are May and June (29.93"Hg).
Average wind speed in September
Deanville, TX
- Average wind speed in September: 5.9mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is September (5.9mph).
Average humidity in September
Deanville, TX
- Average humidity in September: 71%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Deanville, TX
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.56").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in September
Deanville, TX
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is September (13.5 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in September
Deanville, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Deanville, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 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
Deanville, TX
- Average daylight in September: 12h and 18min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Deanville, TX
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is September (13.8 days).
Average UV index in September
Deanville, 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
Deanville, TX
- Average cloud cover in September: 33
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Deanville, 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).





