Paradise Valley, AZ 85028 Frost Dates
85028, near Paradise Valley, AZ: the frost window
The last spring frost here typically falls around 01/06, about 131 days from today. Fall's first freeze usually shows up around 12/26, roughly 353 days after the last spring frost.
Paradise Valley sits in USDA Zone 10a (30 to 35°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
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
Paradise Valley's growing season runs about 353 days, ranking 2,239 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 59 of 506.
Learn more
Two guides worth reading on 85028: zone vs. frost date, on why Zone 10a and Paradise Valley's frost date answer different questions, and the frost range, on how to read the range around Paradise Valley's dates instead of trusting one.