July weather forecast
Mehlville, MO

The peak of summer in Mehlville falls in July, with the highest recorded average temperatures. The imposing rainfall of previous months recedes, making way for relatively drier weather conditions. The daylight hours begin to decrease while the humidity levels remain steady, sustaining the summer's heat. Unsurprisingly, July faces the highest temperatures, amassing a scorching 86.9°F (30.5°C) as the highest monthly average. Nevertheless, the summer breeze remains steady, providing some respite from the heat.

Temperature

Mehlville witnesses the warmest weather in July, with temperatures averaging a high of 86.9°F (30.5°C) and a low of 69.3°F (20.7°C).

Heat index

The heat index for July is calculated to be a very hot 100.4°F (38°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. 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. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.

Humidity

In Mehlville, the average relative humidity in July is 76%.

Rainfall

In Mehlville, in July, it is raining for 16.9 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, in Mehlville, there are 146.1 rainfall days, and 32.36" (822mm) of precipitation is accumulated.

Snowfall

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

Daylight

In July, the average length of the day is 14h and 32min.
On the first day of July, sunrise is at 5:41 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:12 pm CDT.

Sunshine

In July, the average sunshine is 10.3h.

UV index

May 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 vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.