Glendale, CA 90039 Frost Dates
90039, near Glendale, CA: the frost window
The NOAA station nearest to 90039 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).
Glendale against the rest of the dataset
At roughly 365 frost-free days, Glendale places 366 of 40,283 ZIP codes in this dataset. Within CA, it ranks 121 of 2,555.
Learn more
Two guides worth reading on 90039: zone vs. frost date, on why Zone 10b and Glendale's frost date answer different questions, and local microclimates, on what one yard in Glendale can differ from the 90039 normal.