Humidity Levels in Arizona During December

The average humidity in December is listed below for places in Arizona. 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 8 am and Afternoon measures are for 5 pm local standard time.

Average relative humidity (%) in December
Daily Place Morning Afternoon
61 Flagstaff 71 50
52 Phoenix 67 33
50 Tucson 62 34
65 Winslow 77 50
46 Yuma 58 31

Highest and Lowest Humidity

Below are the averages during December for maximum and minimum humidity levels in Arizona. 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 December
High Time Place Low Time
70.8 5 am Flagstaff 43.7 2 pm
66.9 8 am Phoenix 33.4 5 pm
62.7 5 am Tucson 31.8 2 pm
77.2 8 am Winslow 46.5 2 pm
58.3 8 am Yuma 29.8 2 pm

World Data Center for Meteorology. Climate of the World.

Arizona Humidity
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