Contents
- Weather in June
- Frequently asked questions
- Average temperature in June
- Average pressure in June
- Average wind speed in June
- Average humidity in June
- Average rainfall in June
- Average rainfall days in June
- Average snowfall in June
- Average snowfall days in June
- Average daylight in June
- Average sunshine in June
- Average sunshine days in June
- Average UV index in June
- Average cloud cover in June
- Average visibility in June
Weather in June
Temperature
A soft shift in the average high-temperature is noticeable in June, transitioning from an agreeable 72.1°F (22.3°C) in May to a warm 80.1°F (26.7°C). During June, McLean experiences a consistent low-temperature average of 63.9°F (17.7°C).Humidity
In June, the average relative humidity in McLean is 80%.Rainfall
In McLean, Illinois, in June, during 14.8 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 135 rainfall days, and 17.72" (450mm) of precipitation is accumulated.Snowfall
In McLean, snow does not fall in May through October.Daylight
June has the longest days of the year in McLean, with an average of 15h and 0min of daylight.On the first day of June, sunrise is at 5:28 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:30 pm CDT.
Sunshine
The month with the most sunshine in McLean is June, with an average of 10.3h of sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 in June translates into these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are June temperatures in McLean?
What is the average humidity in June in McLean?
How much does it rain in McLean in June?
When it does not snow in McLean?
When are the longest days in McLean?
How many hours of daylight does McLean have in June?
When are sunrise and sunset in June in McLean?
What month has the most sunshine in McLean?
How long on average sun shines in June in McLean?
What are the months with the highest UV index in McLean?
How high is the UV index in June in McLean?
Average temperature in June
McLean, IL
- Average high temperature in June: 80.1°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in June: 63.9°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in June
McLean, IL
- Average pressure in June: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in June
McLean, 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 (6.3mph).
Average humidity in June
McLean, IL
- Average humidity in June: 80%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
McLean, IL
- Average rainfall in June: 2.17"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in June
McLean, IL
- Average rainfall days in June: 14.8 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in June
McLean, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in June
McLean, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (9.5 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
McLean, 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 24min).
- Average sunshine in June: 10h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in June
McLean, IL
- Average sunshine days in June: 12.3 days
The months with the most sunshine days are November and December (20 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in June
McLean, 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
McLean, IL
- Average cloud cover in June: 31
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
McLean, 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).
McLean, Illinois, USA
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