Randolph, UT 84064 Frost Dates
84064, near Randolph, UT: the frost window
The last spring frost here typically falls around 06/14, about 290 days from today. Fall's first freeze usually shows up around 09/01, roughly 76 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Randolph in Zone 4a (-30 to -25°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
Randolph's growing season runs out in roughly 1 week — 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
06/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/31 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.
Randolph against the rest of the dataset
About 76 days separate Randolph's last and first frost, putting it 40,087 of 40,283 ZIP codes nationally. Within UT, it ranks 344 of 344.
Learn more
Two guides worth reading on 84064: zone vs. frost date, on why Zone 4a and Randolph's frost date answer different questions, and the frost range, on how to read the range around Randolph's dates instead of trusting one.