Chandler, AZ 85244 Frost Dates
Chandler, AZ: when does the frost end?
Typically, the last spring freeze lands around 02/13, roughly 169 days out. Fall's first freeze usually shows up around 12/05, roughly 298 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 Chandler, not a forecast for this year.
Stretching the season past the first frost
With roughly 14 weeks until Chandler's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
02/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/09 and only about 1 year in 10 sees frost after that.
Chandler against the rest of the dataset
Chandler's growing season runs about 298 days, ranking 4,189 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 260 of 506.
Learn more
Before leaning on 85244's figures: local microclimates explains what one yard in Chandler can differ from the 85244 normal, while zone vs. frost date explains why Zone 9b and Chandler's frost date answer different questions.