Paradise Valley, AZ 85250 Frost Dates
Frost dates for Paradise Valley, AZ, ZIP 85250
The last spring frost here typically falls around 02/13, about 169 days from today. The first fall frost typically arrives around 12/05, about 298 frost-free days later.
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.
What to do before the first frost
Zone 9b around Paradise Valley has about 14 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
02/13 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Paradise Valley compares
At roughly 298 frost-free days, Paradise Valley places 4,202 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 270 of 506.
Learn more
zone vs. frost date explains why Zone 9b and Paradise Valley's frost date answer different questions, and the frost range explains how to read the range around Paradise Valley's dates instead of trusting one.