September weather forecastOld River-Winfree, TX
September
Weather in September
September, the first month of the autumn in Old River-Winfree, is still a hot month, with an average temperature fluctuating between 87.3°F (30.7°C) and 73°F (22.8°C).Temperature
Old River-Winfree ushers in September with an average high-temperature of a still hot 87.3°F (30.7°C), showing a close resemblance to the previous month. An average low-temperature of 73°F (22.8°C) is anticipated throughout the nights during September.Heat index
The heat index value during September is appraised at a very hot 102.2°F (39°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.The standards for the heat index are set for locations in shade and under light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In Old River-Winfree, the average relative humidity in September is 76%.Rainfall
The month with the most rainfall is September, when the rain falls for 19.9 days and typically aggregates up to 5.16" (131mm) of precipitation.Snowfall
In Old River-Winfree, Texas, snow does not fall in February through November.Daylight
In Old River-Winfree, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:05 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Old River-Winfree, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (92.5°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in September: 73°F
The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in September
Old River-Winfree, 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
Old River-Winfree, TX
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in September
Old River-Winfree, TX
- Average humidity in September: 76%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Old River-Winfree, TX
- Average rainfall in September: 5.16"
The wettest month (with the highest rainfall) is September (5.16").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in September
Old River-Winfree, TX
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is August (20.1 days).
The month with the least rainy days is January (11.3 days).
Average snowfall in September
Old River-Winfree, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Old River-Winfree, 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
Old River-Winfree, TX
- Average daylight in September: 12h and 18min
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 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Old River-Winfree, TX
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is September (8.5 days).
Average UV index in September
Old River-Winfree, 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
Old River-Winfree, TX
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July, August and October (Cloud cover 27).
Average visibility in September
Old River-Winfree, 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).
