Humidity Levels in California During October





The average humidity in October 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 October
Daily Place Morning Afternoon
Southern California
50 Bakersfield 64 34
68 Long Beach 78 53
71 Los Angeles 75 65
69 San Diego 73 63
72 Santa Barbara 81 63
75 Santa Maria 84 61
Northern California
59 Fresno 78 35
63 Sacramento 82 38
72 San Francisco 82 59
60 Stockton 78 37

Highest and Lowest Humidity

Below are the averages during October 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 October
High Time Place Low Time
Southern California
64.3 7 am Bakersfield 33.8 4 pm
80.5 4 am Long Beach 49.4 1 pm
78.4 4 am Los Angeles 57.9 1 pm
76.3 4 am San Diego 58.4 1 pm
81.0 7 am Santa Barbara 59.4 1 pm
87.8 1 am Santa Maria 51.0 1 pm
Northern California
77.8 7 am Fresno 34.5 4 pm
81.8 7 am Sacramento 38.3 4 pm
82.1 7 am San Francisco 55.2 1 pm
78.0 7 am Stockton 37.4 4 pm
Reference

World Data Center for Meteorology. Climate of the World.

California Humidity
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