Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
The arrival of June signals a slight increase in the average high-temperature, moving from 75.4°F (24.1°C) in May to a still moderately hot 84°F (28.9°C). The nighttime temperature dips to a refreshing 66.7°F (19.3°C) on average during June.Heat index
Throughout June, the heat index is calculated to be a tropical 93.2°F (34°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Note that heat index values are valued for light wind and location in the shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in June is 77%.Rainfall
In Mehlville, Missouri, in June, it is raining for 16 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, there are 146.1 rainfall days, and 32.36" (822mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The month with the longest days is June, with an average of 14h and 48min of daylight.On the first day of June, sunrise is at 5:38 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:29 pm CDT.
Sunshine
With an average of 10.4h of sunshine, June has the most sunshine of the year.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 6 during June leads to these advisories:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is June?
What is the average humidity in June?
How many days does it rain in June?
When it does not snow in Mehlville?
When are the longest days?
What is the average length of the day in June?
What time are sunrise and sunset in June?
What month has the most sunshine?
How many hours of sunshine does Mehlville have in June?
When is the highest UV index?
What is the UV index reading in June?
Average temperature in June
Mehlville, MO
- Average high temperature in June: 84°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in June: 66.7°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in June
Mehlville, MO
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in June
Mehlville, MO
- Average wind speed in June: 6.4mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in June
Mehlville, MO
- Average humidity in June: 77%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in June
Mehlville, MO
- Average rainfall in June: 3.7"
The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").
Average rainfall days in June
Mehlville, MO
- Average rainfall days in June: 16 days
The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in June
Mehlville, MO
- Average snowfall in June: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Mehlville, MO
- Average snowfall days in June: 0 days
The months with the highest number of snowfall days are January and February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Mehlville, MO
- Average daylight in June: 14h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in June: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in June
Mehlville, MO
- Average sunshine days in June: 11.6 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in June
Mehlville, MO
- Average UV index in June: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in June
Mehlville, MO
- Average cloud cover in June: 29
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in June
Mehlville, MO
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Mehlville, Missouri, USA
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