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
September marks a gentle change in average high-temperature, declining from August's torrid 100.6°F (38.1°C) to a hot 93°F (33.9°C). La Rosita's September nights cool down to an average low-temperature of 77.2°F (25.1°C).Heat index
In September, the average heat index is appraised at a scorching 107.6°F (42°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 particularly relevant to children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
The average relative humidity in September is 61%.Rainfall
The month with the most rainfall is September, when the rain falls for 14.5 days and typically aggregates up to 2.28" (58mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in September is 12h and 18min.On the first day of September, sunrise is at 7:15 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:22 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 7 during September translates into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun 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
How hot is it in September?
What is the average humidity in September?
What is the wettest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does La Rosita have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
La Rosita, TX
- Average high temperature in September: 93°F
The warmest month (with the highest average high temperature) is August (100.6°F).
The month with the lowest average high temperature is January (69.8°F).
- Average low temperature in September: 77.2°F
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).
Average pressure in September
La Rosita, TX
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is May (29.86"Hg).
Average wind speed in September
La Rosita, TX
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is July (14.4mph).
The calmest month (with the lowest average wind speed) is December (9.1mph).
Average humidity in September
La Rosita, TX
- Average humidity in September: 61%
The month with the highest relative humidity is December (63%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
La Rosita, TX
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is September (2.28").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
La Rosita, TX
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is February (5.4 days).
Average snowfall days in September
La Rosita, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
La Rosita, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
La Rosita, TX
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is December (24.1 days).
The month with the least sunshine days is September (13.9 days).
Average UV index in September
La Rosita, TX
- Average UV index in September: 7
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
La Rosita, TX
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
La Rosita, 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).
La Rosita, Texas, USA
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