June weather forecastCrystal Lake, IA
June
Weather in June
The first month of the summer, June, is a moderately hot month in Crystal Lake, Iowa, with an average temperature fluctuating between 61°F (16.1°C) and 76.6°F (24.8°C).Temperature
The rise of average high-temperatures is seen in June, with an increase from a refreshing 67.5°F (19.7°C) in May to a moderately hot 76.6°F (24.8°C). The average temperature during June nights is registered at a comfortable 61°F (16.1°C).Humidity
The average relative humidity in June is 79%.Rainfall
The month with the most rainfall is June, when the rain falls for 18.8 days and typically aggregates up to 4.21" (107mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
June has the longest days of the year, with an average of 15h and 18min of daylight.On the first day of June, sunrise is at 5:37 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:59 pm CDT.
Sunshine
In Crystal Lake, the average sunshine in June is 9.5h.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 6 in June translates into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. 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
Crystal Lake, IA
- Average high temperature in June: 76.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in June: 61°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in June
Crystal Lake, IA
- Average pressure in June: 29.88"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in June
Crystal Lake, IA
- Average wind speed in June: 8.5mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in June
Crystal Lake, IA
- Average humidity in June: 79%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).
Average rainfall in June
Crystal Lake, IA
- Average rainfall in June: 4.21"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in June
Crystal Lake, IA
- Average rainfall days in June: 18.8 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in June
Crystal Lake, IA
- Average snowfall in June: 0"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in June
Crystal Lake, IA
- Average snowfall days in June: 0 days
The month with the highest number of snowfall days is January (13.3 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, IA
- Average daylight in June: 15h and 18min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- 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 30min).
Average sunshine days in June
Crystal Lake, IA
- Average sunshine days in June: 9.2 days
The months with the most sunshine days are October and November (17.4 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in June
Crystal Lake, IA
- Average UV index in June: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in June
Crystal Lake, IA
- Average cloud cover in June: 37
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in June
Crystal Lake, IA
- Average visibility in June: 6mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).





