Holbrook, AZ 86029 Frost Dates
When can you plant in Holbrook, AZ?
The last spring frost here typically falls around 04/22, about 237 days from today. The first fall frost typically arrives around 10/24, about 184 frost-free days later.
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 Holbrook, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Holbrook before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/08 and you're betting against frost in roughly 9 years out of 10. 05/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Holbrook compares
Holbrook's growing season runs about 184 days, ranking 23,509 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 425 of 506.
Learn more
the frost range covers how to read the range around Holbrook's dates instead of trusting one. local microclimates covers what one yard in Holbrook can differ from the 86029 normal.