Tusayan, AZ 86020 Frost Dates
Frost dates for Tusayan, AZ, ZIP 86020
Around 04/16 is the usual last spring frost, about 231 days away. The first fall frost typically arrives around 10/28, about 193 frost-free days later.
Zone 7b (5 to 10°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 Tusayan, not a forecast for this year.
What to do before the first frost
Zone 7b around Tusayan has about 9 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
04/16 is the middle of 30 years of NOAA records, not a promise. Plant by 03/31 and you're betting against frost in roughly 9 years out of 10. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tusayan compares
At roughly 193 frost-free days, Tusayan places 20,037 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 416 of 506.
Learn more
zone vs. frost date explains why Zone 7b and Tusayan's frost date answer different questions, and the frost range explains how to read the range around Tusayan's dates instead of trusting one.