Seal Beach, CA 90740 Frost Dates
90740, near Seal Beach, CA: the frost window
The NOAA station nearest to 90740 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).
Seal Beach against the rest of the dataset
About 365 days separate Seal Beach's last and first frost, putting it 1,178 of 40,283 ZIP codes nationally. Within CA, it ranks 502 of 2,555.
Learn more
Two guides worth reading on 90740: local microclimates, on what one yard in Seal Beach can differ from the 90740 normal, and the methodology, on exactly which NOAA and USDA figures feed 90740's numbers.