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July is San Diego's Driest Month, according to precipitation data compiled since the year 1850. Only four hundredths of an inch of rain falls on average this month, compared to almost two inches in January, the wettest month. July also marks the beginning of a new rainfall year, as defined by local meteorological convention.
July is San Diego's Driest Month, according to precipitation data compiled since the year 1850. Only four hundredths of an inch of rain falls on average this month, compared to almost two inches in January, the wettest month. July also marks the beginning of a new rainfall year, as defined by local meteorological convention.