Humidity Levels in Michigan During August

The average humidity in August is listed below for places in Michigan. 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 7 am and Afternoon measures are for 4 pm local standard time.

Average relative humidity (%) in August
Daily Place Morning Afternoon
76 Alpena 90 59
72 Detroit 86 54
73 Flint 88 55
73 Grand Rapids 88 55
76 Houghton Lake 90 58
75 Lansing 90 56
75 Muskegon 89 59
80 Sault Ste Marie 92 63

Highest and Lowest Humidity

Below are the averages during August for maximum and minimum humidity levels in Michigan. 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 August
High Time Place Low Time
90.3 4 am Alpena 58.5 1 pm
86.6 4 am Detroit 54.0 4 pm
89.2 4 am Flint 54.9 4 pm
88.5 4 am Grand Rapids 54.7 4 pm
90.4 7 am Houghton Lake 57.7 4 pm
90.2 4 am Lansing 55.5 4 pm
88.5 7 am Muskegon 59.3 4 pm
93.1 4 am Sault Ste Marie 62.5 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

Michigan Humidity
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