Paradise Valley, AZ 85251 Frost Dates
Paradise Valley, AZ: when does the frost end?
The last spring frost here typically falls around 02/13, about 169 days from today. 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 Paradise Valley, not a forecast for this year.
Stretching the season past the first frost
With roughly 14 weeks until Paradise Valley's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Paradise Valley's last frost
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.
Paradise Valley against the rest of the dataset
At roughly 298 frost-free days, Paradise Valley places 4,203 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 271 of 506.
Learn more
Before leaning on 85251's figures: zone vs. frost date explains why Zone 9b and Paradise Valley's frost date answer different questions, while the frost range explains how to read the range around Paradise Valley's dates instead of trusting one.