Wellton, AZ 85356 Frost Dates
Wellton, AZ: when does the frost end?
Around 01/11 is the usual last spring frost, about 136 days away. Fall's first freeze usually shows up around 12/21, roughly 347 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Wellton in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 16 weeks until Wellton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Wellton's last frost
01/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/17 and only about 1 year in 10 sees frost after that.
Wellton against the rest of the dataset
About 347 days separate Wellton's last and first frost, putting it 2,414 of 40,283 ZIP codes nationally. Within AZ, it ranks 76 of 506.
Learn more
Before leaning on 85356's figures: local microclimates explains what one yard in Wellton can differ from the 85356 normal, while zone vs. frost date explains why Zone 9b and Wellton's frost date answer different questions.