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 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
In Needville, the average high-temperature in September gently drops from a tropical 93.2°F (34°C) in August to a still hot 87.4°F (30.8°C). In Needville, September nights cool down to an average of 72.1°F (22.3°C).Heat index
The heat index in September is computed to be a torrid 102.2°F (39°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The average relative humidity in September is 77%.Rainfall
In Needville, in September, during 13.5 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Needville, during the entire year, the rain falls for 105 days and collects up to 9.33" (237mm) of precipitation.Snowfall
In Needville, snow does not fall in March through November.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:01 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:09 pm CDT.
Sunshine
The average sunshine in September in Needville is 8.3h.UV index
The average daily maximum UV index in September in Needville, Texas, is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Needville during September?
What is the average humidity in September in Needville?
How much does it rain in Needville in September?
When it does not snow in Needville?
How many hours of daylight does Needville have in September?
When is the sunrise / sunset in September in Needville?
How long on average sun shines in September in Needville?
What is the UV index intensity in September in Needville?
Average temperature in September
Needville, TX
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (93.2°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in September: 72.1°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (45.9°F).
Average pressure in September
Needville, 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 (29.93"Hg).
Average wind speed in September
Needville, TX
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is September (5.8mph).
Average humidity in September
Needville, TX
- Average humidity in September: 77%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Needville, TX
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is May (1.22").
The driest month (with the least rainfall) is February (0.35").
Average rainfall days in September
Needville, 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 February (5.7 days).
Average snowfall days in September
Needville, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Needville, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in September
Needville, TX
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is September (14.1 days).
Average UV index in September
Needville, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Needville, TX
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Needville, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Needville, Texas, USA
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