37.3394°N/121.8950°W
When to plant in San Jose
California, United States · Mediterranean, warm summer (Köppen Csb)
Last spring frost · safe
Mar 10
~10% frost risk · typical Feb 12
First fall frost · safe
Nov 17
~10% frost risk · typical Dec 3
Frost-free days
294
Feb 12 → Dec 3
Climate zone
Mediterranean, warm summer
Köppen Csb
82/100 confidence
◇ Station-based
The frost date shown is the safe date (~10% frost risk); the typical median is shown alongside. Your microclimate can shift things ±1–2 weeks.
The growing year
Frost-bounded season with crops mapped onto the 12-month axis.
Frost risk Growing Harvest
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
FROST
GROWING SEASON — 294 DAYS
FEB 12
DEC 3
Full crop calendar
Source: Curated · based on NOAA GHCN-Daily 1991–2020 normal · Köppen–Geiger classification (Beck et al. 2023) · crop windows from FAO ECOCROP references. How we calculate this →
Also see frost dates for San Jose.