East County is the warmest region in San Diego. The rule of thumb in the summer is for every one mile inland from the coast, it gets one degree warmer. El Cajon is the last major community cars pass through on their way east away from San Diego. Some very charming and affordable communities exist in East County, where the sun seems to shine more than anywhere else in San Diego County. For this very reason a burgeoning wine valley in Ramona is gaining recognition for outstanding local wines.