Parker, AZ 92280 Frost Dates
Parker, AZ: when does the frost end?
Typically, the last spring freeze lands around 01/12, roughly 137 days out. Fall's first freeze usually shows up around 12/19, roughly 338 days after the last spring frost.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Parker, not a forecast for this year.
Stretching the season past the first frost
With roughly 16 weeks until Parker's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Parker's last frost
01/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/20 and only about 1 year in 10 sees frost after that.
Parker against the rest of the dataset
At roughly 338 frost-free days, Parker places 2,638 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 147 of 506.
Learn more
Before leaning on 92280's figures: the frost range explains how to read the range around Parker's dates instead of trusting one, while local microclimates explains what one yard in Parker can differ from the 92280 normal.