Paradise Valley, AZ 85253 Frost Dates
85253, near Paradise Valley, AZ: the frost window
Typically, the last spring freeze lands around 01/06, roughly 131 days out. Fall's first freeze usually shows up around 12/26, roughly 353 days after the last spring frost.
Zone 10a (30 to 35°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 Paradise Valley, not a forecast for this year.
Stretching the season past the first frost
Paradise Valley's growing season runs out in roughly 17 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 Paradise Valley's last frost
01/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/07 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/16 and only about 1 year in 10 sees frost after that.
Paradise Valley against the rest of the dataset
At roughly 353 frost-free days, Paradise Valley places 2,241 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 61 of 506.
Learn more
Two guides worth reading on 85253: local microclimates, on what one yard in Paradise Valley can differ from the 85253 normal, and zone vs. frost date, on why Zone 10a and Paradise Valley's frost date answer different questions.