Sahuarita, AZ 85720 Frost Dates
Sahuarita, AZ: when does the frost end?
The last spring frost here typically falls around 04/26, about 241 days from today. Fall's first freeze usually shows up around 11/04, roughly 195 days after the last spring frost.
Sahuarita 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.
Stretching the season past the first frost
With roughly 10 weeks until Sahuarita's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Sahuarita against the rest of the dataset
About 195 days separate Sahuarita's last and first frost, putting it 19,176 of 40,283 ZIP codes nationally. Within AZ, it ranks 401 of 506.
Learn more
Before leaning on 85720's figures: the frost range explains how to read the range around Sahuarita's dates instead of trusting one, while local microclimates explains what one yard in Sahuarita can differ from the 85720 normal.