June weather forecastWinnetka, IL
June
Weather in June
The first month of the summer, June, is a pleasant month in Winnetka, Illinois, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 72.5°F (22.5°C).Temperature
June's arrival signals an increase in average high-temperatures, moving from May's comfortable 62.8°F (17.1°C) to an agreeable 72.5°F (22.5°C). Winnetka throughout June, records an average low-temperature of 60.1°F (15.6°C).Humidity
In Winnetka, the average relative humidity in June is 78%.Rainfall
The wettest months are May and June, with an average 4.57" (116mm) of rainfall.Snowfall
June through September are months without snowfall.Daylight
With an average of 15h and 12min of daylight, June has the longest days of the year.On the first day of June, sunrise is at 5:17 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:30 pm CDT.
Sunshine
In June, the average sunshine is 9.8h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in June translates into this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Winnetka, IL
- Average high temperature in June: 72.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in June: 60.1°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in June
Winnetka, IL
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in June
Winnetka, IL
- Average wind speed in June: 8mph
The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in June
Winnetka, IL
- Average humidity in June: 78%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in June
Winnetka, IL
- Average rainfall in June: 4.57"
The wettest months (with the highest rainfall) are May and June (4.57").
The driest month (with the least rainfall) is December (1.65").
Average rainfall days in June
Winnetka, IL
- Average rainfall days in June: 18.2 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in June
Winnetka, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (4.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Winnetka, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Winnetka, IL
- Average daylight in June: 15h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in June: 9h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in June
Winnetka, IL
- Average sunshine days in June: 9.2 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in June
Winnetka, IL
- Average UV index in June: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in June
Winnetka, IL
- Average cloud cover in June: 34
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in June
Winnetka, IL
- 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).





