Redmond, UT 84621 Frost Dates
84621, near Redmond, UT: the frost window
Typically, the last spring freeze lands around 05/31, roughly 276 days out. Fall's first freeze usually shows up around 09/21, roughly 114 days after the last spring frost.
Redmond sits in USDA Zone 6a (-10 to -5°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
Redmond'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.
How much risk comes with planting early here
05/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/16 and only about 1 year in 10 sees frost after that.
Redmond against the rest of the dataset
At roughly 114 frost-free days, Redmond places 39,365 of 40,283 ZIP codes in this dataset. Within UT, it ranks 313 of 344.
Learn more
Two guides worth reading on 84621: local microclimates, on what one yard in Redmond can differ from the 84621 normal, and zone vs. frost date, on why Zone 6a and Redmond's frost date answer different questions.