September weather forecastFannin, TX
September
Weather in September
September, the first month of the autumn in Fannin, is also a hot month, with an average temperature fluctuating between 73.2°F (22.9°C) and 89.1°F (31.7°C).Temperature
The average high-temperature slightly decreases in September, shifting from a very hot 95°F (35°C) in August to a tropical 89.1°F (31.7°C). Fannin experiences an average low-temperature of 73.2°F (22.9°C) in the month of September.Heat index
The heat index value for September is estimated at an extremely hot 105.8°F (41°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The average relative humidity in September is 74%.Rainfall
The month with the most rainfall in Fannin is September, when the rain falls for 17.6 days and typically aggregates up to 2.95" (75mm) of precipitation.Snowfall
February through November are months without snowfall in Fannin.Daylight
The average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fannin, TX
- Average high temperature in September: 89.1°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (62.8°F).
- Average low temperature in September: 73.2°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (46.6°F).
Average pressure in September
Fannin, TX
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Fannin, TX
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are April and May (9.5mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in September
Fannin, TX
- Average humidity in September: 74%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Fannin, TX
- Average rainfall in September: 2.95"
The wettest month (with the highest rainfall) is September (2.95").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Fannin, TX
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is July (11 days).
Average snowfall in September
Fannin, 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
Fannin, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Fannin, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Fannin, TX
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is July (17.4 days).
The month with the least sunshine days is September (10.5 days).
Average UV index in September
Fannin, 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
Fannin, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Fannin, 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).
