Santa Ana, CA 92701 Frost Dates
92701, near Santa Ana, CA: the frost window
The NOAA station nearest to 92701 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).
Santa Ana against the rest of the dataset
At roughly 365 frost-free days, Santa Ana places 300 of 40,283 ZIP codes in this dataset. Within CA, it ranks 93 of 2,555.
Learn more
Two guides worth reading on 92701: the methodology, on exactly which NOAA and USDA figures feed 92701's numbers, and zone vs. frost date, on why Zone 10b and Santa Ana's frost date answer different questions.