Humidity Levels in South Dakota During January

The average humidity in January is listed below for places in South Dakota. 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. At one place, Rapid City, humidity data are for 8 am and 5 pm.

Average relative humidity (%) in January
Daily Place Morning Afternoon
73 Aberdeen 76 67
71 Huron 74 64
64 Rapid City 66 62
72 Sioux Falls 75 64

Highest and Lowest Humidity

Below are the averages during January for maximum and minimum humidity levels in South Dakota. 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 January
High Time Place Low Time
75.7 6 am Aberdeen 66.7 3 pm
74.2 3 am Huron 63.5 3 pm
66.9 2 am Rapid City 54.3 2 pm
75.0 3 am Sioux Falls 64.0 3 pm

World Data Center for Meteorology. Climate of the World.

South Dakota Humidity
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