Bishop, CA 93512 Frost Dates
93512, near Bishop, CA: the frost window
The last spring frost here typically falls around 04/29, about 244 days from today. Fall's first freeze usually shows up around 10/15, roughly 166 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Bishop in Zone 6b (-5 to 0°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Bishop's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/29 isn't a guarantee
04/29 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/27 and only about 1 year in 10 sees frost after that.
Bishop against the rest of the dataset
Bishop's growing season runs about 166 days, ranking 30,372 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,408 of 2,555.
Learn more
Two guides worth reading on 93512: zone vs. frost date, on why Zone 6b and Bishop's frost date answer different questions, and the frost range, on how to read the range around Bishop's dates instead of trusting one.