San Diego, CA 92199 Frost Dates
San Diego, CA: when does the frost end?
The NOAA station nearest to 92199 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 10a (30 to 35°F average annual minimum).
San Diego against the rest of the dataset
About 365 days separate San Diego's last and first frost, putting it 26 of 40,283 ZIP codes nationally. Within CA, it ranks 19 of 2,555.
Learn more
Before leaning on 92199's figures: local microclimates explains what one yard in San Diego can differ from the 92199 normal, while the methodology explains exactly which NOAA and USDA figures feed 92199's numbers.