Florence, AZ 85132 Frost Dates
Frost dates for Florence, AZ, ZIP 85132
Around 01/30 is the usual last spring frost, about 155 days away. The first fall frost typically arrives around 12/12, about 319 frost-free days later.
Florence sits in USDA Zone 9b (25 to 30°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 9b around Florence has about 15 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.
Why 01/30 isn't a guarantee
01/30 is the middle of 30 years of NOAA records, not a promise. Plant by 02/24 and you're betting against frost in roughly 9 years out of 10. 12/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Florence compares
Florence's growing season runs about 319 days, ranking 3,318 of 40,283 US ZIP codes measured here, longest to shortest. Within AZ, it ranks 201 of 506.
Learn more
local microclimates explains what one yard in Florence can differ from the 85132 normal, and zone vs. frost date explains why Zone 9b and Florence's frost date answer different questions.