Calipatria, CA 92233 Frost Dates
Calipatria, CA: when does the frost end?
Typically, the last spring freeze lands around 01/16, roughly 141 days out. Fall's first freeze usually shows up around 12/19, roughly 335 days after the last spring frost.
Calipatria sits in USDA Zone 9b (25 to 30°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 16 weeks until Calipatria's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Calipatria's last frost
01/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/21 and only about 1 year in 10 sees frost after that.
Calipatria against the rest of the dataset
About 335 days separate Calipatria's last and first frost, putting it 2,746 of 40,283 ZIP codes nationally. Within CA, it ranks 1,241 of 2,555.
Learn more
Before leaning on 92233's figures: zone vs. frost date explains why Zone 9b and Calipatria's frost date answer different questions, while the frost range explains how to read the range around Calipatria's dates instead of trusting one.