Rancho Santa Margarita, CA 92679 Frost Dates
92679, near Rancho Santa Margarita, CA: the frost window
The NOAA station nearest to 92679 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).
Rancho Santa Margarita against the rest of the dataset
Rancho Santa Margarita's growing season runs about 365 days, ranking 909 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 373 of 2,555.
Learn more
Two guides worth reading on 92679: local microclimates, on what one yard in Rancho Santa Margarita can differ from the 92679 normal, and the methodology, on exactly which NOAA and USDA figures feed 92679's numbers.