Ridgecrest, CA 93542 Frost Dates
93542, near Ridgecrest, CA: the frost window
Around 01/04 is the usual last spring frost, about 129 days away. Fall's first freeze usually shows up around 12/22, roughly 352 days after the last spring frost.
Zone 8b (15 to 20°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 Ridgecrest, not a forecast for this year.
Stretching the season past the first frost
Ridgecrest's growing season runs out in roughly 17 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 Ridgecrest's last frost
01/04 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/16 and only about 1 year in 10 sees frost after that.
Ridgecrest against the rest of the dataset
Ridgecrest's growing season runs about 352 days, ranking 2,280 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 1,011 of 2,555.
Learn more
Two guides worth reading on 93542: local microclimates, on what one yard in Ridgecrest can differ from the 93542 normal, and zone vs. frost date, on why Zone 8b and Ridgecrest's frost date answer different questions.