Newton, UT 84304 Frost Dates
Newton, UT: when does the frost end?
Around 05/03 is the usual last spring frost, about 248 days away. Fall's first freeze usually shows up around 10/12, roughly 160 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Newton in Zone 6a (-10 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 6 weeks until Newton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/24 and only about 1 year in 10 sees frost after that.
Newton against the rest of the dataset
About 160 days separate Newton's last and first frost, putting it 32,446 of 40,283 ZIP codes nationally. Within UT, it ranks 151 of 344.
Learn more
Before leaning on 84304's figures: zone vs. frost date explains why Zone 6a and Newton's frost date answer different questions, while the frost range explains how to read the range around Newton's dates instead of trusting one.