Humidity Levels in Illinois During June

The average humidity in June is listed below for places in Illinois. The tables give daily averages along with highest and lowest relative humidity levels.

Relative humidity measures the actual amount of moisture in the air as a percentage of the maximum amount of moisture the air can hold.

All the numbers here are averages for the years 1961 to 1990.

Average Humidity

In this table, the Daily number is the average of humidity readings taken every three hours throughout the day. Morning percentages are for 6 am and Afternoon measures are for 3 pm local standard time.

Average relative humidity (%) in June
Daily Place Morning Afternoon
66 Chicago 78 52
66 Moline 80 49
67 Peoria 81 52
66 Rockford 81 51
67 Springfield 82 50

Highest and Lowest Humidity

Below are the averages during June for maximum and minimum humidity levels in Illinois. The hours when this month's highest and lowest humidity readings usually occur are given in local standard time.

Daily high and low relative humidity (%) averages in June
High Time Place Low Time
79.2 3 am Chicago 52.4 3 pm
80.8 3 am Moline 49.1 3 pm
81.4 6 am Peoria 51.7 3 pm
81.8 3 am Rockford 50.6 3 pm
81.8 3 am Springfield 50.4 3 pm
Reference

World Data Center for Meteorology. Climate of the World.

Illinois Humidity
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