The area is often referred to as Tri City area of San Diego County or North County in San Diego. Whatever you call it, it is undoubtedly the best place to be winter or summer.
In the summer it is cooler than the rest of Southern California and in the Winter it is warmer. You can check the weather Data history at http://www.wunderground.com/cgi-bin/findweather/getForecast?query=32.72999954,-117.19000244#History
There are more things to do with the family than any other area I have been in. More birds along the many rivers and lagoons to learn about, More wildlife than other urban areas. More contests and races, More fairs and open air Markets. bowling alleys, pools both salt water and freshwater. Art classes, craft classes, Yoga classes, writing classes, acting opportunities in at least 2 playhouse. And so much more.