June weather forecastCrystal Lake, IL
June
Weather in June
The first month of the summer, June, is a moderately hot month in Crystal Lake, Illinois, with an average temperature fluctuating between 59°F (15°C) and 76.1°F (24.5°C).Temperature
The arrival of June brings an increase in high-temperatures, moving from an enjoyable 67.1°F (19.5°C) in May to a moderately hot 76.1°F (24.5°C). In June, Crystal Lake records an average nighttime temperature of 59°F (15°C).Humidity
In June, the average relative humidity is 81%.Rainfall
The month with the most rainfall is June, when the rain falls for 16.3 days and typically aggregates up to 2.8" (71mm) of precipitation.Snowfall
June 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 5:18 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:33 pm CDT.
Sunshine
In Crystal Lake, the average sunshine in June is 9.7h.UV index
In Crystal Lake, the average daily maximum UV index in June is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 5 during June morphs into the following directions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Crystal Lake, IL
- Average high temperature in June: 76.1°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in June: 59°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in June
Crystal Lake, 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
Crystal Lake, IL
- Average wind speed in June: 7.2mph
The windiest months (with the highest average wind speed) are January and February (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in June
Crystal Lake, IL
- Average humidity in June: 81%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in June
Crystal Lake, IL
- Average rainfall in June: 2.8"
The wettest month (with the highest rainfall) is June (2.8").
The driest months (with the least rainfall) are November and December (0.94").
Average rainfall days in June
Crystal Lake, IL
- Average rainfall days in June: 16.3 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in June
Crystal Lake, IL
- Average snowfall in June: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Crystal Lake, IL
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in June /
Average sunshine in June
Crystal Lake, 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in June
Crystal Lake, IL
- Average sunshine days in June: 10.7 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is July (10 days).
Average UV index in June
Crystal Lake, IL
- Average UV index in June: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in June
Crystal Lake, IL
- Average cloud cover in June: 35
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and September (Cloud cover 32).
Average visibility in June
Crystal Lake, IL
- Average visibility in June: 6mi
The months with the highest visibility are March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January, February and August (5mi).





