September weather forecast
Buffalo, TX

The first month of the autumn, September, is still a tropical month in Buffalo, Texas, with an average temperature varying between 68.9°F (20.5°C) and 88.7°F (31.5°C).

Temperature

Buffalo's progression into September involves a gentle drop in the average high-temperature, from a fiery hot 95.9°F (35.5°C) in August to a hot 88.7°F (31.5°C). Throughout September, Buffalo records an average temperature of 68.9°F (20.5°C) at night.

Heat index

The heat index value for September is computed to be a very hot 102.2°F (39°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
Understanding the heat index involves considering values for shaded locales with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in September in Buffalo is 70%.

Rainfall

In Buffalo, during September, the rain falls for 15.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Buffalo, during the entire year, the rain falls for 149.4 days and collects up to 30" (762mm) of precipitation.

Snowfall

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

Daylight

In Buffalo, Texas, the average length of the day in September is 12h and 21min.
On the first day of September in Buffalo, sunrise is at 7:00 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:10 pm CDT.

Sunshine

The average sunshine in September is 8.4h.

UV index

In September, the average daily maximum UV index in Buffalo is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 6 during September translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.