Hawthorne, CA 90303 Frost Dates
Hawthorne, CA: when does the frost end?
The NOAA station nearest to 90303 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).
Hawthorne against the rest of the dataset
About 365 days separate Hawthorne's last and first frost, putting it 654 of 40,283 ZIP codes nationally. Within CA, it ranks 285 of 2,555.
Learn more
Before leaning on 90303's figures: the methodology explains exactly which NOAA and USDA figures feed 90303's numbers, while zone vs. frost date explains why Zone 10b and Hawthorne's frost date answer different questions.