Morgan Hill, CA 95056 Frost Dates
95056, near Morgan Hill, CA: the frost window
The last spring frost here typically falls around 05/03, about 248 days from today. Fall's first freeze usually shows up around 11/18, roughly 197 days after the last spring frost.
Zone 10a (30 to 35°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Morgan Hill, not a forecast for this year.
Stretching the season past the first frost
Morgan Hill's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/05 and only about 1 year in 10 sees frost after that.
Morgan Hill against the rest of the dataset
At roughly 197 frost-free days, Morgan Hill places 18,596 of 40,283 ZIP codes in this dataset. Within CA, it ranks 2,268 of 2,555.
Learn more
Two guides worth reading on 95056: zone vs. frost date, on why Zone 10a and Morgan Hill's frost date answer different questions, and the frost range, on how to read the range around Morgan Hill's dates instead of trusting one.