San Diego Weather In December

In the last 70 years the highest measured temperature in San Diego California for December was 88 degrees Fahrenheit, on December 29, 1963, while the regular high temperature is 66. The record low December temperature in San Diego for the last 70 years was 34 registered on December 15, 1987, and the standard low recorded daily temperature is 49.

According to National Weather Service historical San Diego December Weather data, on December 31, 1915, the high temperature did not exceed 49 degrees Fahrenheit, the lowest high measured in San Diego in the past 70 years. NWS weather data additionally shows that on December 26, 1977, the lowest recorded temperature on that day did not drop below 64 degrees, the highest low measured in San Diego in the last 70 years.

National Weather Service data shows that the high temperature in San Diego on December First averages 67 degrees Fahrenheit and the high on the final day of December averages 64 degrees. The average daily low temperature in San Diego on December First is 50 degrees Fahrenheit and the average low on the last day of December is 48 degrees.

San Diego usually receives an average of 1.31 inches of rain during December. December San Diego Weather records indicate that on December 22, 1945 San Diego received 2.6 inches of precipitation, the highest amount of rain recorded in a single day in December.