Marysvale, UT 84750 Frost Dates
84750, near Marysvale, UT: the frost window
Around 05/24 is the usual last spring frost, about 269 days away. Fall's first freeze usually shows up around 09/25, roughly 123 days after the last spring frost.
Zone 6a (-10 to -5°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Marysvale, not a forecast for this year.
Stretching the season past the first frost
Marysvale's growing season runs out in roughly 4 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
05/24 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 06/10 and only about 1 year in 10 sees frost after that.
Marysvale against the rest of the dataset
At roughly 123 frost-free days, Marysvale places 38,917 of 40,283 ZIP codes in this dataset. Within UT, it ranks 276 of 344.
Learn more
Two guides worth reading on 84750: local microclimates, on what one yard in Marysvale can differ from the 84750 normal, and zone vs. frost date, on why Zone 6a and Marysvale's frost date answer different questions.