Hildale, UT 84784 Frost Dates
Hildale, UT: when does the frost end?
Typically, the last spring freeze lands around 04/26, roughly 241 days out. Fall's first freeze usually shows up around 10/25, roughly 180 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hildale 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
With roughly 8 weeks until Hildale'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 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Hildale against the rest of the dataset
At roughly 180 frost-free days, Hildale places 24,933 of 40,283 ZIP codes in this dataset. Within UT, it ranks 108 of 344.
Learn more
Before leaning on 84784's figures: the frost range explains how to read the range around Hildale's dates instead of trusting one, while local microclimates explains what one yard in Hildale can differ from the 84784 normal.