Santa Clara County · California
San Jose, CA weather averages
NOAA climate normals for 1991-2020, measured at San Jose, 4.7 km from the city centre — month by month temperature, rain and snow.
Quick answer
San Jose averages a daily high of 72.4°F and a daily low of 50.6°F across the year, with 14.9 inches of precipitation. July is the warmest month at 83.4°F and December the coldest at 42.2°F.
- Average annual high
- 72.4°FWarmest month July
- Average annual low
- 50.6°FColdest month December
- Precipitation per year
- 14.9 inWettest month February
- Snowfall per year
- —1.7 days at or below 32°F
San Jose weather month by month
Normal daily high and low, precipitation and snowfall for each month, 1991-2020.
| Month | High °F | Low °F | Precip in | Snow in | Range |
|---|---|---|---|---|---|
| January | 59.8 | 42.3 | 2.99 | — | 42.3 to 59.8 degrees |
| February | 63.8 | 45.2 | 3.32 | — | 45.2 to 63.8 degrees |
| March | 66.8 | 47 | 2.04 | — | 47 to 66.8 degrees |
| April | 70.1 | 48.5 | 1.06 | — | 48.5 to 70.1 degrees |
| May | 75.4 | 52.6 | 0.39 | — | 52.6 to 75.4 degrees |
| June | 80.6 | 56.1 | 0.09 | — | 56.1 to 80.6 degrees |
| July | 83.4 | 58.4 | — | — | 58.4 to 83.4 degrees |
| August | 82.6 | 58.7 | — | — | 58.7 to 82.6 degrees |
| September | 81.8 | 56.7 | 0.23 | — | 56.7 to 81.8 degrees |
| October | 75.9 | 52.6 | 0.78 | — | 52.6 to 75.9 degrees |
| November | 67.5 | 46.4 | 1.88 | — | 46.4 to 67.5 degrees |
| December | 61.2 | 42.2 | 2.12 | — | 42.2 to 61.2 degrees |
Source: NOAA NCEI, U.S. Climate Normals 1991-2020 — station USW00023293, San Jose · rates as published for 1991-2020 normals
How to read San Jose climate normals
What a climate normal is, and what it is not.
A normal is the average of thirty years of daily observations at one station — here San Jose, 4.7 km from the centre of San Jose. It describes a typical year, so any single year will run warmer, cooler, wetter or drier. Readings taken at an airport on the edge of town usually sit a degree or two below a dense downtown on summer nights. San Jose sees about 20.2 days a year at or above 90°F and about 32.8 days with a tenth of an inch of precipitation or more.
Keep going
Other San Jose data on this site.