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's arrival signals a moderate reduction in the average high-temperature, easing from a hot 94.6°F (34.8°C) in August to a still tropical 88.3°F (31.3°C). Pattison's temperature tends to fall to an average low of 71.8°F (22.1°C) during the nights of September.Heat index
Throughout September, the heat index is appraised at a blisteringly hot 104°F (40°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.It is noted that heat index values are ascertained for locations in the shade and 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 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In September, the average relative humidity is 76%.Rainfall
In Pattison, during September, the rain falls for 16.5 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 144.3 rainfall days, and 17.8" (452mm) of precipitation is accumulated.Snowfall
In Pattison, snow does not fall in March through November.Daylight
The average length of the day in September in Pattison is 12h and 20min.On the first day of the month, sunrise is at 7:01 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:10 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Pattison is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a regular UV index of 6 translates into these guidelines:
Ward off overexposure. Defence against solar harm is crucial. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Pattison, TX
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (60.8°F).
- Average low temperature in September: 71.8°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (44.6°F).
Average pressure in September
Pattison, 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
Pattison, TX
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in September
Pattison, TX
- Average humidity in September: 76%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Pattison, TX
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in September
Pattison, TX
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is September (16.5 days).
The month with the least rainy days is January (8.2 days).
Average snowfall days in September
Pattison, 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
Pattison, 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 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Pattison, TX
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is September (10.4 days).
Average UV index in September
Pattison, 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
Pattison, TX
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Pattison, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, August, September, October, November and December (6mi).
The months with the lowest visibility are April, May, June and July (5mi).
Pattison, Texas, USA
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