Vernon, CA 90021 Frost Dates
When can you plant in Vernon, CA?
The NOAA station nearest to 90021 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 Vernon compares
At roughly 365 frost-free days, Vernon places 2,015 of 40,283 ZIP codes in this dataset. Within CA, it ranks 909 of 2,555.
Learn more
zone vs. frost date covers why Zone 10b and Vernon's frost date answer different questions. local microclimates covers what one yard in Vernon can differ from the 90021 normal.