Annual Average Humidity in Wisconsin

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The average humidity year round is listed below for places in Wisconsin. 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 yearly relative humidity (%)
Daily Place Morning Afternoon
73 Green Bay 82 60
72 La Crosse 83 57
73 Madison 84 58
72 Milwaukee 80 63

Highest and Lowest Humidity

Below are averages over the year for maximum and minimum humidity levels in Wisconsin. The hours when the highest and lowest humidity readings usually occur are given in local standard time.

Annual averages for daily high and low relative humidity (%)
High Time Place Low Time
82.4 6 am Green Bay 60.2 3 pm
83.4 6 am La Crosse 56.9 3 pm
83.8 6 am Madison 57.8 3 pm
80.2 6 am Milwaukee 62.8 3 pm
Reference

World Data Center for Meteorology. Climate of the World.

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