Rio Dell, CA 95558 Frost Dates
When can you plant in Rio Dell, CA?
The NOAA station nearest to 95558 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 9b (25 to 30°F average annual minimum).
How Rio Dell compares
At roughly 365 frost-free days, Rio Dell places 1,913 of 40,283 ZIP codes in this dataset. Within CA, it ranks 887 of 2,555.
Learn more
local microclimates covers what one yard in Rio Dell can differ from the 95558 normal. the methodology covers exactly which NOAA and USDA figures feed 95558's numbers.