June weather forecastSaint Clair, MO
June
Weather in June
June, the first month of the summer in Saint Clair, is still a warm month, with an average temperature fluctuating between 85.6°F (29.8°C) and 64.9°F (18.3°C).Temperature
The onset of June marks an increase in the average high-temperature, moving from 76.3°F (24.6°C) in May to a still warm 85.6°F (29.8°C). Saint Clair experiences a consistent average temperature of 64.9°F (18.3°C) throughout the nights in June.Heat index
The heat index value for June is calculated to be a sweltering 96.8°F (36°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.Heat index data is primarily for areas with shade and subjected to light winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In June, the average relative humidity is 76%.Rainfall
In Saint Clair, during June, the rain falls for 12.8 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Saint Clair, there are 126.7 rainfall days, and 20.63" (524mm) 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 the month, sunrise is at 5:41 am and sunset at 8:22 pm. On the last day of June, in Saint Clair, sunrise is at 5:43 am and sunset at 8:31 pm CDT.
Sunshine
June and July, with an average of 10.4h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index in Saint Clair, Missouri, are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 6 during June morphs into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Saint Clair, MO
- Average high temperature in June: 85.6°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in June: 64.9°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in June
Saint Clair, 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
Saint Clair, MO
- Average wind speed in June: 6.1mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in June
Saint Clair, MO
- Average humidity in June: 76%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in June
Saint Clair, MO
- Average rainfall in June: 2.01"
The wettest months (with the highest rainfall) are April and May (2.48").
The driest months (with the least rainfall) are January and February (0.98").
Average rainfall days in June
Saint Clair, MO
- Average rainfall days in June: 12.8 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in June
Saint Clair, MO
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in June
Saint Clair, MO
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in June /
Average sunshine in June
Saint Clair, MO
- Average daylight in June: 14h and 48min
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 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).
Average sunshine days in June
Saint Clair, MO
- Average sunshine days in June: 14.2 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is May (13.7 days).
Average UV index in June
Saint Clair, 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, November and December (UV index 2).
Average cloud cover in June
Saint Clair, MO
- Average cloud cover in June: 29
The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in June
Saint Clair, MO
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).
