September weather forecastFairfield, TX
September
Weather in September
The first month of the autumn, September, is also a hot month in Fairfield, Texas, with an average temperature varying between 68.9°F (20.5°C) and 88.7°F (31.5°C).Temperature
The beginning of September brings a minor change in the average high-temperature, shifting from a torrid 95.5°F (35.3°C) in August to a hot 88.7°F (31.5°C). In Fairfield, the average low-temperature during the month of September is an agreeable 68.9°F (20.5°C).Heat index
In September, the heat index is evaluated at a sweltering 102.2°F (39°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Always consider that heat index estimations are for light winds and places in the shade. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 particularly relevant to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in September in Fairfield, Texas, is 69%.Rainfall
In Fairfield, during September, the rain falls for 13.8 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Fairfield, during the entire year, the rain falls for 127.3 days and collects up to 19.37" (492mm) of precipitation.Snowfall
In Fairfield, snow does not fall in April through December.Daylight
In Fairfield, the average length of the day in September is 12h and 21min.On the first day of September in Fairfield, sunrise is at 7:00 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:10 pm CDT.
Sunshine
The average sunshine in September in Fairfield is 8.6h.UV index
In September, the average daily maximum UV index in Fairfield is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. 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
Average temperature in September
Fairfield, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (74.3°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).
Average pressure in September
Fairfield, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Fairfield, TX
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is September (5.9mph).
Average humidity in September
Fairfield, TX
- Average humidity in September: 69%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Fairfield, TX
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Fairfield, TX
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is September (13.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Fairfield, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Fairfield, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Fairfield, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- 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 12min).
Average sunshine days in September
Fairfield, TX
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is September (13.7 days).
Average UV index in September
Fairfield, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Fairfield, TX
- Average cloud cover in September: 31
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Fairfield, 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).
