Humidity Levels in Minnesota During September

The average humidity in September is listed below for places in Minnesota. 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 September
Daily Place Morning Afternoon
76 Duluth 87 60
77 International Falls 90 59
71 Minneapolis & St. Paul 85 54
75 Rochester 88 58
74 St. Cloud 91 55

Highest and Lowest Humidity

Below are the averages during September for maximum and minimum humidity levels in Minnesota. 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 September
High Time Place Low Time
87.2 6 am Duluth 59.9 3 pm
90.4 6 am International Falls 58.6 3 pm
85.0 6 am Minneapolis & St. Paul 54.4 3 pm
87.8 6 am Rochester 58.0 3 pm
90.5 6 am St. Cloud 54.5 3 pm

World Data Center for Meteorology. Climate of the World.

Minnesota Humidity
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