Mammoth Lakes, CA 93517 Frost Dates
Mammoth Lakes, CA: when does the frost end?
The NOAA station nearest to 93517 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 6a (-10 to -5°F average annual minimum).
Mammoth Lakes against the rest of the dataset
About 69 days separate Mammoth Lakes's last and first frost, putting it 40,124 of 40,283 ZIP codes nationally. Within CA, it ranks 2,540 of 2,555.
Learn more
Before leaning on 93517's figures: the methodology explains exactly which NOAA and USDA figures feed 93517's numbers, while zone vs. frost date explains why Zone 6a and Mammoth Lakes's frost date answer different questions.