San Leandro, CA 94577 Frost Dates
When can you plant in San Leandro, CA?
Around 01/07 is the usual last spring frost, about 132 days away. The first fall frost typically arrives around 12/23, about 356 frost-free days later.
San Leandro sits in USDA Zone 10a (30 to 35°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 17 weeks of growing season left in San Leandro before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
01/07 is the middle of 30 years of NOAA records, not a promise. Plant by 02/08 and you're betting against frost in roughly 9 years out of 10. 12/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How San Leandro compares
At roughly 356 frost-free days, San Leandro places 2,100 of 40,283 ZIP codes in this dataset. Within CA, it ranks 964 of 2,555.
Learn more
the frost range covers how to read the range around San Leandro's dates instead of trusting one. local microclimates covers what one yard in San Leandro can differ from the 94577 normal.