July weather forecast
Ballwin, MO

July sees the warmest weather in Ballwin with the highest temperature hitting 88.2°F (31.2°C). Despite the high heat, the city continues to buzz both day and night as locals and tourists alike enjoy the lasting daylight hours. Emphasising sun protection becomes essential, taking into consideration the high UV index. The occurrence of sporadic rainfall doesn't deter the bustling summer spirit.

Temperature

July, with its high-temperature average of 88.2°F (31.2°C) and a low-temperature average of 69.3°F (20.7°C), is the warmest month in Ballwin, Missouri.

Heat index

In July, the heat index is calculated to be an extremely hot 104°F (40°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Realize that the values for the heat index are set for shaded places and light 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 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in July is 75%.

Rainfall

In Ballwin, Missouri, in July, during 15.7 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Ballwin, during the entire year, the rain falls for 134.1 days and collects up to 23.82" (605mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Ballwin, the average length of the day in July is 14h and 33min.
On the first day of July in Ballwin, sunrise is at 5:41 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:13 pm CDT.

Sunshine

July has the most sunshine of the year, with an average of 10.4h of sunshine.

UV index

With an average maximum UV index of 7, July is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 7 in July transforms into this advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.