August weather forecast
Jeffersonville, IN

August carries the reputation of being the time when Jeffersonville starts to say goodbye to the intense summer heat. The month's weather is a shade cooler than the peak heat experienced in July. However, temperatures do reach an impressive high of 85.8°F (29.9°C). Transitioning from August to September, the weather begins to cool down gradually. In essence, August walks the fine line by maintaining the summer heat while hinting at the coming fall season.

Temperature

The advent of August observes an average high-temperature of a warm 85.8°F (29.9°C), nearly identical to July's 86.9°F (30.5°C). August brings with it a nighttime average temperature of 65.8°F (18.8°C) in Jeffersonville.

Heat index

In August, the average heat index is appraised at a fiery hot 96.8°F (36°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Know that the heat index computations account for shaded terrains and slight winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

August and October, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Jeffersonville, Indiana, during August, the rain falls for 16.6 days and regularly aggregates up to 2.99" (76mm) of precipitation. Throughout the year, there are 184.1 rainfall days, and 39.33" (999mm) of precipitation is accumulated.

Snowfall

In Jeffersonville, snow does not fall in May through October.

Daylight

In Jeffersonville, the average length of the day in August is 13h and 36min.
On the first day of the month, sunrise is at 6:46 am and sunset at 8:52 pm. On the last day of August, sunrise is at 7:12 am and sunset at 8:13 pm EDT.

Sunshine

In Jeffersonville, the average sunshine in August is 9.8h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.