September weather forecastCarrollton, TX
September
Weather in September
September announces the arrival of autumn in Carrollton, Texas, significantly reducing temperatures but still maintaining the city's warmth, with an average high temperature of 88°F (31.1°C). Rainfall rises and cloud coverage increases, inviting cooler and more pleasant weather conditions. It calls for comfort outdoor pursuits as it breaks the persistent heat of the summer. The shrinking length of daylight becomes more noticeable, heralding the coming of the cooler months. Despite the heat withdrawal, the weather maintains a mild summer feeling, making it favorable for barbecues and outdoor festivals.Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a sweltering 96.3°F (35.7°C) in August to a hot 88°F (31.1°C). An average low-temperature of 70.7°F (21.5°C) is observed during September nights.Heat index
September's heat index is estimated at a fiery hot 96.8°F (36°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. 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.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity is 62%.Rainfall
In September, the rain falls for 14.8 days. Throughout September, 2.64" (67mm) of precipitation is accumulated. In Carrollton, during the entire year, the rain falls for 142.4 days and collects up to 31.3" (795mm) of precipitation.Snowfall
In Carrollton, snow does not fall in March through October.Daylight
In Carrollton, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:02 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:13 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. 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. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Carrollton, TX
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
Carrollton, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Carrollton, TX
- Average wind speed in September: 6.7mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is September (6.7mph).
Average humidity in September
Carrollton, TX
- Average humidity in September: 62%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Carrollton, TX
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is October (4.02").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in September
Carrollton, TX
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Carrollton, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Carrollton, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 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
Carrollton, 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 30min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Carrollton, TX
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is September (13.8 days).
Average UV index in September
Carrollton, 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
Carrollton, TX
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Carrollton, 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).
