San Jose Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in San Jose, California during each month of the year.
The average high and low temperatures are listed below for the city, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F monthly and annually in San Jose, scroll down farther. There are also counts of nights with cold weather.
All the numbers are averages, based on climate data gathered from 1981 to 2010.
|High °F||Low °F||High °C||Low °C|
Days of Hot Weather in San Jose
San Jose doesn't get many really hot days a year. But a day of 90-degree weather can show up as early as April or as late as October.
The city averages just one day annually when the temperature reaches 100 degrees Fahrenheit (38 °C) or more. A day that hot can happen anytime from May to August.
How Often San Jose Has Cold Temperatures
Lows in the 30s Fahrenheit are about as cold as it ever gets at San Jose. The city sees just three nights a winter when the temperature cools down to freezing.
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.