Annual Average Humidity in Ohio

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The average humidity year round is listed below for places in Ohio. 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 yearly relative humidity (%)
Daily Place Morning Afternoon
70 Akron 80 58
70 Cincinnati 81 56
71 Cleveland 79 61
70 Columbus 80 57
70 Dayton 80 57
72 Mansfield 82 61
72 Toledo 83 58
73 Youngstown 82 60

Highest and Lowest Humidity

Below are averages over the year for maximum and minimum humidity levels in Ohio. 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
80.1 7 am Akron 58.1 4 pm
81.2 7 am Cincinnati 56.0 4 pm
79.6 4 am Cleveland 61.0 4 pm
79.9 7 am Columbus 56.5 4 pm
80.3 7 am Dayton 57.3 4 pm
81.5 7 am Mansfield 61.0 4 pm
83.2 4 am Toledo 58.4 4 pm
81.8 7 am Youngstown 59.8 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

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