Humidity Levels in Oregon During July

The average humidity in July is listed below for places in Oregon. 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 July
Daily Place Morning Afternoon
80 Astoria 86 69
64 Eugene 79 39
48 Medford 64 26
36 Pendleton 46 23
63 Portland 76 44
63 Salem 75 40

Highest and Lowest Humidity

Below are the averages during July for maximum and minimum humidity levels in Oregon. 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 July
High Time Place Low Time
89.2 4 am Astoria 68.6 1 pm
86.9 4 am Eugene 38.7 4 pm
72.9 4 am Medford 25.7 4 pm
52.8 4 am Pendleton 23.0 4 pm
80.3 4 am Portland 44.1 4 pm
85.8 4 am Salem 40.4 4 pm

World Data Center for Meteorology. Climate of the World.

Oregon Humidity
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