Orange Cove, CA 93621 Frost Dates
93621, near Orange Cove, CA: the frost window
The last spring frost here typically falls around 02/23, about 179 days from today. Fall's first freeze usually shows up around 12/12, roughly 294 days after the last spring frost.
Zone 9a (20 to 25°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 Orange Cove, not a forecast for this year.
Stretching the season past the first frost
Orange Cove's growing season runs out in roughly 15 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Orange Cove's last frost
02/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/04 and only about 1 year in 10 sees frost after that.
Orange Cove against the rest of the dataset
About 294 days separate Orange Cove's last and first frost, putting it 4,262 of 40,283 ZIP codes nationally. Within CA, it ranks 1,649 of 2,555.
Learn more
Two guides worth reading on 93621: zone vs. frost date, on why Zone 9a and Orange Cove's frost date answer different questions, and the frost range, on how to read the range around Orange Cove's dates instead of trusting one.