June weather forecastGreen Valley, IL
June
Weather in June
The first month of the summer, June, is a moderately hot month in Green Valley, Illinois, with an average temperature ranging between max 80.6°F (27°C) and min 63.9°F (17.7°C).Temperature
Green Valley's weather shows a minor temperature rise with the arrival of June, moving from a pleasant 72.1°F (22.3°C) in May to a moderately hot 80.6°F (27°C). Green Valley encounters an average low-temperature of 63.9°F (17.7°C) during June nights.Heat index
In June, the average heat index is appraised at a tropical 86°F (30°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In Green Valley, Illinois, the average relative humidity in June is 80%.Rainfall
In Green Valley, in June, during 15.7 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 131.4 rainfall days, and 20.08" (510mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
With an average of 15h and 0min of daylight, June has the longest days of the year.On the first day of the month, sunrise is at 5:30 am and sunset at 8:22 pm. On the last day of June, sunrise is at 5:32 am and sunset at 8:32 pm CDT.
Sunshine
With an average of 10.2h of sunshine, June has the most sunshine of the year.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Green Valley. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 6 in June interprets into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Green Valley, IL
- Average high temperature in June: 80.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in June: 63.9°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in June
Green Valley, IL
- Average pressure in June: 29.91"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in June
Green Valley, IL
- Average wind speed in June: 7.7mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in June
Green Valley, 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 (71%).
Average rainfall in June
Green Valley, IL
- Average rainfall in June: 2.28"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in June
Green Valley, IL
- Average rainfall days in June: 15.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in June
Green Valley, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
Green Valley, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (8.4 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
Green Valley, IL
- Average daylight in June: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in June: 10h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in June
Green Valley, IL
- Average sunshine days in June: 12 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in June
Green Valley, 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
Green Valley, IL
- Average cloud cover in June: 32
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in June
Green Valley, 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).





