Humidity Levels in Indiana During September

The average humidity in September is listed below for places in Indiana. 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. At one location, Evansville, humidity data are for 6 am and 3 pm.

Average relative humidity (%) in September
Daily Place Morning Afternoon
73 Evansville 88 53
73 Fort Wayne 89 54
74 Indianapolis 90 54
74 South Bend 88 56

Highest and Lowest Humidity

Below are the averages during September for maximum and minimum humidity levels in Indiana. 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
87.7 6 am Evansville 53.0 3 pm
88.5 7 am Fort Wayne 54.2 4 pm
90.3 7 am Indianapolis 54.4 4 pm
88.2 7 am South Bend 56.4 4 pm

World Data Center for Meteorology. Climate of the World.

Indiana Humidity
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