Quartzsite, AZ 85346 Frost Dates
Quartzsite, AZ: when does the frost end?
Typically, the last spring freeze lands around 01/28, roughly 153 days out. Fall's first freeze usually shows up around 12/06, roughly 315 days after the last spring frost.
Quartzsite 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
With roughly 14 weeks until Quartzsite's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Quartzsite's last frost
01/28 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 12/31 and only about 1 year in 10 sees frost after that.
Quartzsite against the rest of the dataset
At roughly 315 frost-free days, Quartzsite places 3,421 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 215 of 506.
Learn more
Before leaning on 85346's figures: zone vs. frost date explains why Zone 9a and Quartzsite's frost date answer different questions, while the frost range explains how to read the range around Quartzsite's dates instead of trusting one.