Vernon, CA 90017 Frost Dates
90017, near Vernon, CA: the frost window
The NOAA station nearest to 90017 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).
Vernon against the rest of the dataset
Vernon's growing season runs about 365 days, ranking 2,014 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 908 of 2,555.
Learn more
Two guides worth reading on 90017: the methodology, on exactly which NOAA and USDA figures feed 90017's numbers, and zone vs. frost date, on why Zone 10b and Vernon's frost date answer different questions.