June weather forecastMechanicsburg, IL
June
Weather in June
The first month of the summer, June, is a warm month in Mechanicsburg, Illinois, with an average temperature ranging between min 64.6°F (18.1°C) and max 81.1°F (27.3°C).Temperature
June's arrival coincides with a subtle temperature rise, moving from May's agreeable 72.9°F (22.7°C) to a moderately hot 81.1°F (27.3°C). Mechanicsburg's nighttime temperature in June drops to an average of 64.6°F (18.1°C).Heat index
The average heat index in June is estimated at a tropical 86°F (30°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In June, the average relative humidity in Mechanicsburg, Illinois, is 80%.Rainfall
In June, the rain falls for 15.6 days. Throughout June, 2.56" (65mm) of precipitation is accumulated. Throughout the year, in Mechanicsburg, there are 141.7 rainfall days, and 22.72" (577mm) of precipitation is accumulated.Snowfall
In Mechanicsburg, snow does not fall in May through October.Daylight
The month with the longest days in Mechanicsburg is June, with an average of 14h and 54min of daylight.On the first day of the month, sunrise is at 5:30 am and sunset at 8:20 pm. On the last day of June, sunrise is at 5:33 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 in Mechanicsburg are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 6 during June morphs into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Mechanicsburg, IL
- Average high temperature in June: 81.1°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in June: 64.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in June
Mechanicsburg, IL
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in June
Mechanicsburg, IL
- Average wind speed in June: 7.3mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in June
Mechanicsburg, IL
- Average humidity in June: 80%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Mechanicsburg, IL
- Average rainfall in June: 2.56"
The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.14").
Average rainfall days in June
Mechanicsburg, IL
- Average rainfall days in June: 15.6 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in June
Mechanicsburg, IL
- Average snowfall in June: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Mechanicsburg, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (8.3 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
Mechanicsburg, IL
- Average daylight in June: 14h and 54min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in June: 10h and 24min
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 12min).
Average sunshine days in June
Mechanicsburg, IL
- Average sunshine days in June: 11.8 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (11 days).
Average UV index in June
Mechanicsburg, IL
- Average UV index in June: 6
The months with the highest UV index are 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
Mechanicsburg, IL
- Average cloud cover in June: 29
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in June
Mechanicsburg, IL
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





