FrostDateCheck

Lomita, CA 90844 Frost Dates

90844, near Lomita, CA: the frost window

Zone 10b

Typically, the last spring freeze lands around 01/09, roughly 134 days out. Fall's first freeze usually shows up around 01/05, roughly 365 days after the last spring frost.

Lomita sits in USDA Zone 10b (35 to 40°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

Lomita's growing season runs out in roughly 19 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 Lomita's last frost

01/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/04 and only about 1 year in 10 sees frost after that.

Lomita against the rest of the dataset

Lomita's growing season runs about 365 days, ranking 1,348 of 40,283 US ZIP codes measured here, longest to shortest. Within CA, it ranks 633 of 2,555.

Learn more

Two guides worth reading on 90844: the frost range, on how to read the range around Lomita's dates instead of trusting one, and local microclimates, on what one yard in Lomita can differ from the 90844 normal.