September weather forecastPetty, TX
September
Weather in September
September, the first month of the autumn in Petty, is still a tropical month, with an average temperature fluctuating between 86.2°F (30.1°C) and 67.5°F (19.7°C).Temperature
With the onset of September, Petty's average high-temperature slightly adjusts, moderately receding from August's 93.9°F (34.4°C) to a still hot 86.2°F (30.1°C). The average temperature during September nights dips to a refreshing 67.5°F (19.7°C).Heat index
The heat index value during September is appraised at a fiery hot 95°F (35°C). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. 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 extremely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In September, the average relative humidity in Petty is 67%.Rainfall
In September, the rain falls for 12.9 days. Throughout September, 2.99" (76mm) of precipitation is accumulated. Throughout the year, there are 148.6 rainfall days, and 35.31" (897mm) of precipitation is accumulated.Snowfall
In Petty, snow does not fall in April through October.Daylight
In Petty, the average length of the day in September is 12h and 22min.On the first day of September in Petty, sunrise is at 6:57 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine in Petty is 8.6h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Petty, TX
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (52°F).
- Average low temperature in September: 67.5°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).
Average pressure in September
Petty, TX
- Average pressure in September: 29.98"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
Petty, TX
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are August and September (6.8mph).
Average humidity in September
Petty, TX
- Average humidity in September: 67%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Petty, TX
- Average rainfall in September: 2.99"
The wettest month (with the highest rainfall) is October (4.09").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in September
Petty, TX
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in September
Petty, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Petty, 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
Petty, TX
- Average daylight in September: 12h and 24min
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 0min).
- Average sunshine in September: 8h and 36min
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 24min).
Average sunshine days in September
Petty, TX
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (13.5 days).
Average UV index in September
Petty, 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 2).
Average cloud cover in September
Petty, TX
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Petty, 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).





