San Diego Weather In January

In the last 70 years the highest measured temperature in San Diego California for January was 88 degrees Fahrenheit, registered on January 23, 1953, while the mean high temperature is 66. The coldest January day in San Diego for the past 70 years was 29 most recently encountered on January 4, 1949, while the typical low recorded temperature is 50.

US National Weather Service historical San Diego January Weather data records that on January 3, 1949, the high temperature did not exceed 46 degrees Fahrenheit, the lowest high measured in San Diego in the past 70 years. NWS weather data additionally shows that on January 15, 1980, the lowest recorded temperature on that day did not drop below 63 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 January First averages 64 degrees Fahrenheit and the high on the final day of January averages 64 degrees. The average daily low temperature in San Diego on January First is 48 degrees Fahrenheit and the average low on the last day of January is 48 degrees.

San Diego normally receives an average of 2.28 inches of rain during January. January San Diego Weather records show that on January 31, 1979 San Diego received 2.57 inches of rain, the most rain measured in a single day in January.