Weather By Day

December Weather In San Jose  
December San Jose Weather
Record High: 79°F
Normal High: 58°F
Normal Low: 42°F
Record Low: 19°F
Avg Monthly Rain: 2.53"
Rec 1 Day Rain: 1.9"

San Jose Weather In December

The highest recorded temperature for San Jose for the past 55 years in December was 79 degrees Fahrenheit, most recently encountered on December 12, 1958, while the mean high temperature is 58. The coldest December day in San Jose for the past 55 years was 19 most recently registered on December 23, 1990, and the normal low daily temperature is 42.

United States National Weather Service historical San Jose December Weather data shows that on December 22, 1990, the high temperature did not exceed 38 degrees Fahrenheit, the lowest high measured in San Jose in the past 55 years. Weather Service data also shows that on December 22, 2005, the lowest recorded temperature for the day did not drop below 60 degrees, the highest low measured temperature in San Jose in the last 55 years.

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

San Jose usually receives an average of 2.53 inches of precipitation during the month. The most precipitation measured in a single day, as indicated by December San Jose Weather data, was 1.9 inches on December 22, 1955.