Tusayan, AZ 86023 Frost Dates
86023, near Tusayan, AZ: the frost window
The last spring frost here typically falls around 06/17, about 293 days from today. Fall's first freeze usually shows up around 09/24, roughly 97 days after the last spring frost.
Zone 7a (0 to 5°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.
Stretching the season past the first frost
Tusayan's growing season runs out in roughly 4 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 Tusayan's last frost
06/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 06/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 07/01 and only about 1 year in 10 sees frost after that.
Tusayan against the rest of the dataset
Tusayan's growing season runs about 97 days, ranking 39,782 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 501 of 506.
Learn more
Two guides worth reading on 86023: zone vs. frost date, on why Zone 7a and Tusayan's frost date answer different questions, and the frost range, on how to read the range around Tusayan's dates instead of trusting one.