June weather forecastUnion, MS
June
Weather in June
June, the first month of the summer in Union, is a hot month, with an average temperature varying between 69.3°F (20.7°C) and 90.3°F (32.4°C).Temperature
The shift into June is marked by a modest rise in the average high-temperature, moving from May's moderately hot 82.9°F (28.3°C) to a hot 90.3°F (32.4°C). Throughout June, Union anticipates an average low-temperature of 69.3°F (20.7°C).Heat index
For most parts of June, the heat index is computed to be a blisteringly hot 109.4°F (43°C). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant 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.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
In June, the average relative humidity is 73%.Rainfall
In June, in Union, the rain falls for 16.4 days. Throughout June, 2.87" (73mm) of precipitation is accumulated. In Union, during the entire year, the rain falls for 162.2 days and collects up to 34.8" (884mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
With an average of 14h and 18min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:49 am and sunset at 7:59 pm. On the last day of June, sunrise is at 5:52 am and sunset at 8:08 pm CDT.
Sunshine
June has the most sunshine of the year, with an average of 10.5h of sunshine.UV index
June and July, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 7 in June converts into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Union, MS
- Average high temperature in June: 90.3°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (53.2°F).
- Average low temperature in June: 69.3°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in June
Union, MS
- Average pressure in June: 29.96"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in June
Union, MS
- Average wind speed in June: 5.3mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in June
Union, MS
- Average humidity in June: 73%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Union, MS
- Average rainfall in June: 2.87"
The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in June
Union, MS
- Average rainfall days in June: 16.4 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in June
Union, MS
- Average snowfall in June: 0"
The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in June
Union, MS
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in June /
Average sunshine in June
Union, MS
- Average daylight in June: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in June: 10h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in June
Union, MS
- Average sunshine days in June: 11.1 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in June
Union, MS
- Average UV index in June: 7
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in June
Union, MS
- Average cloud cover in June: 32
The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are September and October (Cloud cover 30).
Average visibility in June
Union, MS
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).





