Humidity Levels in California During April





The average humidity in April is listed below for places in California. 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 April
Daily Place Morning Afternoon
Southern California
51 Bakersfield 64 33
65 Long Beach 75 50
71 Los Angeles 76 64
67 San Diego 71 59
68 Santa Barbara 75 59
76 Santa Maria 84 60
Northern California
57 Fresno 75 34
65 Sacramento 78 43
71 San Francisco 78 59
61 Stockton 76 41

Highest and Lowest Humidity

Below are the averages during April for maximum and minimum humidity levels in California. 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 April
High Time Place Low Time
Southern California
66.6 4 am Bakersfield 32.8 4 pm
79.4 4 am Long Beach 50.1 1 pm
79.8 4 am Los Angeles 60.2 1 pm
75.2 4 am San Diego 55.9 1 pm
76.4 4 am Santa Barbara 57.6 1 pm
89.1 1 am Santa Maria 55.6 1 pm
Northern California
79.9 4 am Fresno 34.3 4 pm
81.5 4 am Sacramento 43.1 4 pm
81.2 4 am San Francisco 56.7 1 pm
78.2 4 am Stockton 40.8 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

California Humidity
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