Monthly temperature, precipitation and hours of sunshine. Average annual rainfall is approximately 9.9 inches per year on the coast and in … December 31, 2019 note: The decade is done, the average annual rain for the 2010's (2010 through 2019) came in at 9.63" at the San Diego Airport, thanks to a very wet 2010 and 2019. Total rainfall in San Diego; Days Year Inches Milli­metres; 62: 2019: 15.3: 389: 28: 2018: 7.7: 195: 32: 2017: 7.9: 201: 40: 2016: 10.2: 260: 45: 2015: 9.9: 252: 29: 2014: 7.8: 198: 28: 2013: 5.6: 142: 40: 2012: 6.6: 169: 39: 2011: 9.1: 231: 60: 2010: 16.3: 414 San Diego; San Diego Precipitation (1850 - 1913) San Diego Precipitation (1914 - present) San Diego Average Temperature (1850 - 1913) San Diego Average Temperature (1914 - present) California Climate Data Archive; Climate Graphs. San Diego weather averages and climate San Diego, California. The national average for mostly sunny days is 213 while San Diego's is 267. On average San Diego sees 21 days with some precipitation while the rest of the country sees about 110. Based on weather reports collected during 1985–2015. The wettest month is February with an average of 53mm of rain. A climate graph showing rainfall, temperatures and normals. The annual average for the last 170 years is 9.86". Annual Weather Averages Near San Diego. San Diego's annual snowfall is 0 inches per year while the nation usually sees an average of 24.2 inches (610 mm) per year. Rainfall (inches) Normal Rainfall (inches) % of Normal: 1965: 8.81: 10.41: 85: 1966: 14.76: …

Averages are for San Diego - North Island, which is 3 miles from San Diego. San Diego (Lindbergh Field) Average monthly weather; Winter Season Precipitation vs ENSO Phase - Borrego Springs San Diego, USA: Annual Weather Averages August is the hottest month in San Diego with an average temperature of 23°C (73°F) and the coldest is January at 14°C (57°F) with the most daily sunshine hours at 10 in July. More than 80 percent of the region's rainfall occurs between December and March.