August weather forecast and climate
Kansas City, MO

The last month of the summer, August, is another hot month in Kansas City, Missouri, with average temperature ranging between max 88.5°F (31.4°C) and min 70.2°F (21.2°C).

Temperature

In August, the average high-temperature is almost the same as in July - a still tropical 88.5°F (31.4°C). In August, the average low-temperature is 70.2°F (21.2°C).

Heat index

The average heat index is calculated to a torrid 101.7°F (38.7°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like pregnancy, differences in body mass, height, and shape, wind, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In August, the average relative humidity in Kansas City is 70%.

Rainfall

In Kansas City, Missouri, in August, during 7.5 rainfall days, 4.39" (111.5mm) of precipitation is typically accumulated. In Kansas City, Missouri, during the entire year, the rain falls for 90.8 days and collects up to 39.06" (992.2mm) of precipitation.

Snowfall

In Kansas City snow does not fall in May through September.

Daylight

The average length of the day in Kansas City is 13.6h.

Sunshine

In Kansas City, the average sunshine is 9.5h.

UV index

In August, the average daily maximum UV index in Kansas City is 9. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 9 in August transform into the following instructions:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.