Coronado, CA 92103 Frost Dates
Frost dates for Coronado, CA, ZIP 92103
The NOAA station nearest to 92103 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 10b (35 to 40°F average annual minimum).
How Coronado compares
At roughly 365 frost-free days, Coronado places 1,491 of 40,283 ZIP codes in this dataset. Within CA, it ranks 768 of 2,555.
Learn more
local microclimates explains what one yard in Coronado can differ from the 92103 normal, and the methodology explains exactly which NOAA and USDA figures feed 92103's numbers.