Source: http://www.rssweather.com/climate/California/Los%20Angeles%20County/
Source: http://www.rssweather.com/climate/California/Los%20Angeles%20County/
Los Angeles is located near the coast so most of the temperatures are relatively stable. LAX is located far more inland and experiences higher average temperatures than a city somewhere closer closer to the coast such as Santa Monica. Los Angeles does not sit that high in elevation, about 200 or so ft, and lacks any large features in the surrounding areas helping the weather and climate maintain predictability. Most of Southern California is not affected by jet streams because of how close the area is to the tropics.
Source: http://cbsnews2.cbsistatic.com/hub/i/2014/04/30/24ac29d5-6d7e-4505-ad06-10a3ec5d34bc/f2b7e4e956933f20e86047e1ad8df734/stations-los-angeles-international-airport-map.jpg
This map shows that LAX, where the station is located, lies in close proximity to the ocean but still quite a ways inland which would suggest that the city is more or less maritime with some elements of being continental. Since there is some variation in monthly temperature, from 65 to about 85 for the high from January to August and about 50 to 65 for the low for the same time, as opposed to a more coastal city such as San Diego which has less seasonal variation in temperature suggests that since LAX has more seasonal variation in temperature it exhibits elements of both being maritime and continental. The Bowen Ratio for Los Angeles has most likely changed over the last 25 years or so because of the tremendous drought the state has been going through the last several years which effects the latent heat and increases sensible heat. An interesting tidbit about this is how Los Angeles tried to combat rising evaporation rates by dumping black shade balls into reservoirs to absorb incoming sunlight.
