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 brings an average high-temperature of a warm 85.8°F (29.9°C), almost identical to the preceding month. During the month of August, Jeffersonville experiences a steady low-temperature average of 65.8°F (18.8°C).

Heat index

August's mean heat index is calculated to be a very hot 96.8°F (36°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for babies and toddlers. 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 body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. 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. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

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

Rainfall

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

Snowfall

May through October are months without snowfall in Jeffersonville.

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, in Jeffersonville, sunrise is at 7:12 am and sunset at 8:13 pm EDT.

Sunshine

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

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Jeffersonville. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.