FrostDateCheck

Calexico, CA 92231 Frost Dates

Calexico, CA: when does the frost end?

Zone 10a

The last spring frost here typically falls around 01/03, about 128 days from today. Fall's first freeze usually shows up around 12/27, roughly 363 days after the last spring frost.

Calexico sits in USDA Zone 10a (30 to 35°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

With roughly 17 weeks until Calexico's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Calexico's last frost

01/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/15 and only about 1 year in 10 sees frost after that.

Calexico against the rest of the dataset

About 363 days separate Calexico's last and first frost, putting it 2,043 of 40,283 ZIP codes nationally. Within CA, it ranks 931 of 2,555.

Learn more

Before leaning on 92231's figures: the frost range explains how to read the range around Calexico's dates instead of trusting one, while local microclimates explains what one yard in Calexico can differ from the 92231 normal.