Westminster, CA 92683 Frost Dates
Westminster, CA: when does the frost end?
The NOAA station nearest to 92683 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).
Westminster against the rest of the dataset
At roughly 365 frost-free days, Westminster places 594 of 40,283 ZIP codes in this dataset. Within CA, it ranks 267 of 2,555.
Learn more
Before leaning on 92683's figures: the methodology explains exactly which NOAA and USDA figures feed 92683's numbers, while zone vs. frost date explains why Zone 10a and Westminster's frost date answer different questions.