San Francisco Weather In December
The hottest day in San Francisco California in December for the past 83 years was 75 degrees Fahrenheit, registered on December 12, 1958, and the normal high is 56. The record low December temperature in San Francisco for the last 83 years was 24 most recently registered on December 9, 1972, and the standard low recorded daily temperature is 43.
United States National Weather Service historical San Francisco December weather data indicates that on December 9, 1972, the measured high temperature did not exceed 37 degrees Fahrenheit, the lowest high measured in San Francisco in the past 83 years. Weather Service records also indicate that on December 23, 1964, the low temperature for the day was not measured below 59 degrees, the highest low measured in San Francisco in the last 83 years.
Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in San Francisco on December First is 67 degrees Fahrenheit and the average high on the last day of December is 64 degrees. The daily low temperature in San Francisco on December First averages 50 degrees Fahrenheit and the low on the last day of December averages 48 degrees.
San Francisco usually receives an average of 2.89 inches of precipitation during the month. The most rain recorded in a single day, as shown by December San Francisco Weather data, was 3.16 inches on December 11, 1995.