Snowflake, AZ 85928 Frost Dates
85928, near Snowflake, AZ: the frost window
Around 05/23 is the usual last spring frost, about 268 days away. Fall's first freeze usually shows up around 10/05, roughly 135 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Snowflake in Zone 7a (0 to 5°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
Snowflake's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Snowflake's last frost
05/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/06 and only about 1 year in 10 sees frost after that.
Snowflake against the rest of the dataset
About 135 days separate Snowflake's last and first frost, putting it 37,842 of 40,283 ZIP codes nationally. Within AZ, it ranks 486 of 506.
Learn more
Two guides worth reading on 85928: the frost range, on how to read the range around Snowflake's dates instead of trusting one, and local microclimates, on what one yard in Snowflake can differ from the 85928 normal.