September weather forecast
Flo, TX

September, the first month of the autumn in Flo, is still a tropical month, with temperature in the range of an average low of 68.9°F (20.5°C) and an average high of 88.7°F (31.5°C).

Temperature

With the arrival of September, Flo experiences a modest decline in average high-temperatures, transitioning from a fiery hot 95.9°F (35.5°C) in August to a tropical 88.7°F (31.5°C). An average low-temperature of 68.9°F (20.5°C) is observed during the September nights.

Heat index

Throughout September, the heat index is estimated at a fiery hot 102.2°F (39°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. 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.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in September is 70%.

Rainfall

In Flo, in September, during 15.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. In Flo, during the entire year, the rain falls for 149.4 days and collects up to 30" (762mm) of precipitation.

Snowfall

Months with snowfall in Flo are January, February and September. September is the first month it typically snows in Flo, Texas. Throughout September, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Flo, there are 1.1 snowfall days, and 0.47" (12mm) of snow is accumulated.

Daylight

The average length of the day in September in Flo, Texas, is 12h and 21min.
On the first day of September, sunrise is at 6:59 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:09 pm CDT.

Sunshine

In September, the average sunshine is 8.4h.

UV index

In Flo, Texas, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.