San Jose, California frost dates
Frost is uncommon in San Jose. NOAA's 1991–2020 normals give a 50% chance of a 32°F freeze after January 12 and before December 22. In practice that means a freeze in roughly half of winters or fewer, usually on just a night or two, so dates are a poor guide here. Gardeners here plan around heat and the cool season, not frost.
Frost risk by date
| Chance of frost | Spring: frost after | Fall: frost before |
|---|---|---|
| 90% | December 20 | January 20 |
| 70% | December 31 | January 1 |
| 50% | January 12 | December 22 |
| 30% | January 26 | December 12 |
| 10% | February 14 | December 1 |
Read the spring column like this: there is a 10% chance of a 32°F freeze after February 14. These are NOAA probabilities for the San Jose weather station (USW00023293, elevation 16 m), 1991–2020.
Nearby cities
| City | Last frost (50%) | First frost (50%) | Distance |
|---|---|---|---|
| San Francisco, CA | Dec 29 | Dec 26 | ~48 km |
| Sacramento, CA | Feb 22 | Nov 24 | ~151 km |
| Fresno, CA | Jan 14 | Dec 14 | ~205 km |
| Reno, NV | Apr 20 | Oct 23 | ~303 km |
| Bakersfield, CA | Jan 17 | Dec 15 | ~331 km |
| Los Angeles, CA | – | – | ~491 km |