June weather forecastLanark, IL
June
Weather in June
June heralds the onset of summer in Lanark, Illinois, cooling off the remnants of the spring season. As temperatures continuing to soar, it reaches the year's high of 77.2°F (25.1°C), a stark contrast from the frosty months at the start of the year. Accompanying this rise in temperature is the year's longest day with 15.2 hours of daylight. There is also an uptick in the UV index, reaching 5, signaling caution to the inhabitants about the intense mid-year sunshine. Despite the dryness prevailed by the summer sun, occasional showers of 2.48" (63mm) keep the vegetation in the city from withering.Temperature
Lanark experiences a minor temperature shift with the start of June, with average high-temperatures moving from an agreeable 68.5°F (20.3°C) in May to a moderately hot 77.2°F (25.1°C). In Lanark, an average low-temperature of 60.4°F (15.8°C) is recorded during June nights.Humidity
In Lanark, the average relative humidity in June is 83%.Rainfall
In Lanark, in June, during 16.4 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Lanark, Illinois, during the entire year, the rain falls for 130.8 days and collects up to 17.95" (456mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The month with the longest days is June, with an average of 15h and 12min of daylight.On the first day of June, sunrise is at 5:25 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:39 pm CDT.
Sunshine
The average sunshine in June is 9.5h.UV index
In Lanark, the average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 5 in June transforms into this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Lanark, IL
- Average high temperature in June: 77.2°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in June: 60.4°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in June
Lanark, IL
- Average pressure in June: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in June
Lanark, IL
- Average wind speed in June: 7.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in June
Lanark, IL
- Average humidity in June: 83%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in June
Lanark, IL
- Average rainfall in June: 2.48"
The wettest month (with the highest rainfall) is May (2.76").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in June
Lanark, IL
- Average rainfall days in June: 16.4 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in June
Lanark, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in June
Lanark, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (11.2 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
Lanark, 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 30min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in June
Lanark, IL
- Average sunshine days in June: 10 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10 days).
Average UV index in June
Lanark, IL
- Average UV index in June: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in June
Lanark, IL
- Average cloud cover in June: 36
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in June
Lanark, IL
- Average visibility in June: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).





