Costa Mesa, CA 92626 Frost Dates
Frost dates for Costa Mesa, CA, ZIP 92626
The NOAA station nearest to 92626 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 Costa Mesa compares
Costa Mesa's growing season runs about 365 days, ranking 471 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 194 of 2,555.
Learn more
local microclimates explains what one yard in Costa Mesa can differ from the 92626 normal, and the methodology explains exactly which NOAA and USDA figures feed 92626's numbers.