Average Relative Humidity
(Percent)

Key Los Angeles County Weather Stations
Monthly & Annual - Measured 1996-2010

Month Period of Day* Long Beach Los Angeles Airport Downtown Los Angeles
Annually Morning 79% 79% 75%
Afternoon 53% 64% 53%
January Morning 74% 70% 63%
Afternoon 51% 59% 50%
February Morning 77% 75% 71%
Afternoon 52% 62% 52%
March Morning 78% 78% 74%
Afternoon 53% 65% 52%
April Morning 79% 80% 78%
Afternoon 50% 64% 54%
May Morning 80% 83% 81%
Afternoon 54% 66% 55%
June Morning 82% 85% 85%
Afternoon 55% 67% 56%
Month Period of Day* Long Beach Los Angeles Airport Downtown Los Angeles
July Morning 82% 86% 84%
Afternoon 52% 68% 53%
August Morning 81% 85% 84%
Afternoon 53% 68% 55%
September Morning 82% 83% 78%
Afternoon 54% 66% 54%
October Morning 80% 78% 76%
Afternoon 53% 64% 56%
November Morning 78% 72% 61%
Afternoon 53% 61% 49%
December Morning 77% 69% 62%
Afternoon 52% 60% 50%

* Period of Day: Morning was measured at 4 a.m.; Afternoon at 4 p.m.

Source: Western Regional Climate Center