June weather forecast
Wentzville, MO

June triggers the advent of summer with increased heat and sunlight exposure in Wentzville, Missouri. The stepped-up temperatures reach a warm 84.6°F (29.2°C), the truest manifestation of the summer start. Despite the warmth, there is a balanced supply of rainfall, preserving the harmony in the ecosystem. The longer daylight hours and recurrent sunshine redefine outdoor activities. The gusting winds from prior months simmer down to mild breezes.

Temperature

Wentzville in June shows a temperature shift, moving from an average high of a moderately hot 74.7°F (23.7°C) in May to a still warm 84.6°F (29.2°C). In Wentzville, an average temperature of 65.8°F (18.8°C) is noted during June nights.

Heat index

The average heat index in June is calculated to be a very hot 95°F (35°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in June is 77%.

Rainfall

In Wentzville, Missouri, in June, during 15.4 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In Wentzville, Missouri, during the entire year, the rain falls for 152.1 days and collects up to 32.01" (813mm) of precipitation.

Snowfall

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

Daylight

The month with the longest days is June, with an average of 14h and 48min of daylight.
On the first day of June in Wentzville, sunrise is at 5:39 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:32 pm CDT.

Sunshine

The months with the most sunshine are June and July, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index in Wentzville are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 6 in June translates into the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.