Humidity Levels in North Carolina During September

The average humidity in September is listed below for places in North Carolina. 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 September
Daily Place Morning Afternoon
84 Asheville 97 64
79 Cape Hatteras 84 70
73 Charlotte 89 55
76 Greensboro 90 56
77 Raleigh 92 57
80 Wilmington 91 65

Highest and Lowest Humidity

Below are the averages during September for maximum and minimum humidity levels in North Carolina. 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
97.4 7 am Asheville 64.0 1 pm
86.4 4 am Cape Hatteras 67.0 1 pm
89.4 7 am Charlotte 54.8 4 pm
90.3 7 am Greensboro 56.4 4 pm
92.0 7 am Raleigh 56.7 4 pm
91.4 4 am Wilmington 62.1 1 pm

World Data Center for Meteorology. Climate of the World.

North Carolina Humidity
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