La Puente, CA 91746 Frost Dates
Frost dates for La Puente, CA, ZIP 91746
The last spring frost here typically falls around 01/04, about 129 days from today. The first fall frost typically arrives around 01/02, about 365 frost-free days later.
The USDA Plant Hardiness Zone Map puts La Puente in Zone 10b (35 to 40°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 10b around La Puente has about 18 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
01/04 is the middle of 30 years of NOAA records, not a promise. Plant by 01/28 and you're betting against frost in roughly 9 years out of 10. 12/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How La Puente compares
At roughly 365 frost-free days, La Puente places 999 of 40,283 ZIP codes in this dataset. Within CA, it ranks 423 of 2,555.
Learn more
the frost range explains how to read the range around La Puente's dates instead of trusting one, and local microclimates explains what one yard in La Puente can differ from the 91746 normal.