Fullerton, CA 92833 Frost Dates
Frost dates for Fullerton, CA, ZIP 92833
The NOAA station nearest to 92833 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).
How Fullerton compares
Fullerton's growing season runs about 365 days, ranking 410 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 153 of 2,555.
Learn more
zone vs. frost date explains why Zone 10a and Fullerton's frost date answer different questions, and local microclimates explains what one yard in Fullerton can differ from the 92833 normal.