Guadalupe, AZ 85034 Frost Dates
Guadalupe, AZ: when does the frost end?
Around 01/05 is the usual last spring frost, about 130 days away. Fall's first freeze usually shows up around 01/03, roughly 365 days after the last spring frost.
Zone 10a (30 to 35°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 Guadalupe, not a forecast for this year.
Stretching the season past the first frost
With roughly 18 weeks until Guadalupe's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Guadalupe's last frost
01/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/19 and only about 1 year in 10 sees frost after that.
Guadalupe against the rest of the dataset
About 365 days separate Guadalupe's last and first frost, putting it 1,878 of 40,283 ZIP codes nationally. Within AZ, it ranks 21 of 506.
Learn more
Before leaning on 85034's figures: zone vs. frost date explains why Zone 10a and Guadalupe's frost date answer different questions, while the frost range explains how to read the range around Guadalupe's dates instead of trusting one.