Parker, AZ 85325 Frost Dates
85325, near Parker, AZ: the frost window
The last spring frost here typically falls around 02/18, about 174 days from today. Fall's first freeze usually shows up around 11/28, roughly 284 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Parker in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Parker's growing season runs out in roughly 13 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 Parker's last frost
02/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/12 and only about 1 year in 10 sees frost after that.
Parker against the rest of the dataset
At roughly 284 frost-free days, Parker places 4,691 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 285 of 506.
Learn more
Two guides worth reading on 85325: zone vs. frost date, on why Zone 9a and Parker's frost date answer different questions, and the frost range, on how to read the range around Parker's dates instead of trusting one.