Humidity Levels in California During March

The average humidity in March 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 March
Daily Place Morning Afternoon
Southern California
61 Bakersfield 75 42
67 Long Beach 78 53
71 Los Angeles 76 65
67 San Diego 73 59
69 Santa Barbara 78 57
76 Santa Maria 87 63
Northern California
69 Fresno 86 46
72 Sacramento 85 53
73 San Francisco 82 63
70 Stockton 85 51

Highest and Lowest Humidity

Below are the averages during March 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 March
High Time Place Low Time
Southern California
75.3 7 am Bakersfield 42.4 4 pm
78.4 4 am Long Beach 52.7 1 pm
78.2 4 am Los Angeles 60.4 10 am
74.9 4 am San Diego 56.4 1 pm
77.8 7 am Santa Barbara 56.6 1 pm
88.5 1 am Santa Maria 57.6 1 pm
Northern California
86.1 4 am Fresno 46.3 4 pm
85.3 7 am Sacramento 52.9 4 pm
81.6 7 am San Francisco 61.5 1 pm
84.8 7 am Stockton 51.1 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

California Humidity
Back to Top