El Paso de Robles (Paso Robles), CA 93446 Frost Dates
93446, near El Paso de Robles (Paso Robles), CA: the frost window
The last spring frost here typically falls around 03/15, about 199 days from today. Fall's first freeze usually shows up around 11/10, roughly 238 days after the last spring frost.
El Paso de Robles (Paso Robles) sits in USDA Zone 9a (20 to 25°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.
Stretching the season past the first frost
El Paso de Robles (Paso Robles)'s growing season runs out in roughly 11 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 El Paso de Robles (Paso Robles)'s last frost
03/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/13 and only about 1 year in 10 sees frost after that.
El Paso de Robles (Paso Robles) against the rest of the dataset
El Paso de Robles (Paso Robles)'s growing season runs about 238 days, ranking 8,936 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 2,124 of 2,555.
Learn more
Two guides worth reading on 93446: local microclimates, on what one yard in El Paso de Robles (Paso Robles) can differ from the 93446 normal, and zone vs. frost date, on why Zone 9a and El Paso de Robles (Paso Robles)'s frost date answer different questions.