San Diego, California Weather - Annual trend, Monthly average range of temperature, Record high/low temperature, Precipitation and Sunshine data

San Diego is the eighth-largest city in the United States and second-largest city in California.

San Diego is often described as "arid Mediterranean" and "Semi-arid Steppe".

San Diego's climate is characterized by warm, dry summers and mild winters with most of the annual precipitation falling between December and March.
The city has mild, mostly dry weather, with an average of 201 days above 70 °F (21 °C) and low rainfall (9–13 inches [23–33 cm] annually).

Rainfall along the coast averages about 10 inches (250 mm) of precipitation annually. The average (mean) rainfall is 10.65 inches (271 mm) and the median is 9.6 inches (240 mm).[37] Most of the rainfall occurs during the cooler months. The months of December through March supply most of the rain, with February the only month averaging 2 inches (51 mm) or more of rain. The months of May through September tend to be almost completely dry.

Snow in the city is so rare that it has been observed only five times in the century-and-a-half that records have been kept.