August weather forecast
Decatur, AL

August maintains the summer spirit in Decatur, with temperatures sustaining from 68.9°F (20.5°C) to 88.2°F (31.2°C), showcasing a steady hold from July. The daylight hours start to shrink, hinting the approaching autumn but the city continues to bask under ample sunshine. Rainfall remains systematic and predictable, ensuring no sudden downpours. Wind speed picks up gradually preparing for the upcoming change of seasons. Despite fall being just around the corner, August staunchly upholds the summer memories.

Temperature

August's onset in Decatur brings an average high-temperature of a still hot 88.2°F (31.2°C), showing a minute difference from July's 88.5°F (31.4°C). In Decatur, the average nighttime temperature during August is a pleasant 68.9°F (20.5°C).

Heat index

During August, the heat index is computed to be a blistering 104°F (40°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In August, the average relative humidity in Decatur is 75%.

Rainfall

In Decatur, in August, during 19 rainfall days, 3.82" (97mm) of precipitation is typically accumulated. Throughout the year, in Decatur, there are 177.6 rainfall days, and 43.11" (1095mm) of precipitation is accumulated.

Snowfall

In Decatur, snow does not fall in April through October.

Daylight

In Decatur, the average length of the day in August is 13h and 25min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:49 pm. On the last day of August, sunrise is at 6:20 am and sunset at 7:15 pm CDT.

Sunshine

In Decatur, the average sunshine in August is 10.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In August, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.