Poway, CA 92131 Frost Dates
When can you plant in Poway, CA?
The NOAA station nearest to 92131 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 Poway compares
At roughly 365 frost-free days, Poway places 897 of 40,283 ZIP codes in this dataset. Within CA, it ranks 365 of 2,555.
Learn more
zone vs. frost date covers why Zone 10b and Poway's frost date answer different questions. local microclimates covers what one yard in Poway can differ from the 92131 normal.