Eagar, AZ 85920 Frost Dates
85920, near Eagar, AZ: the frost window
Around 06/15 is the usual last spring frost, about 291 days away. Fall's first freeze usually shows up around 09/21, roughly 96 days after the last spring frost.
Zone 6b (-5 to 0°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 Eagar, not a forecast for this year.
Stretching the season past the first frost
Eagar's growing season runs out in roughly 3 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 06/15 isn't a guarantee
06/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 06/02 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/30 and only about 1 year in 10 sees frost after that.
Eagar against the rest of the dataset
At roughly 96 frost-free days, Eagar places 39,795 of 40,283 ZIP codes in this dataset. Within AZ, it ranks 502 of 506.
Learn more
Two guides worth reading on 85920: the frost range, on how to read the range around Eagar's dates instead of trusting one, and local microclimates, on what one yard in Eagar can differ from the 85920 normal.