Midway, UT 84049 Frost Dates
Midway, UT: when does the frost end?
Typically, the last spring freeze lands around 05/31, roughly 276 days out. Fall's first freeze usually shows up around 09/11, roughly 101 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 Midway, not a forecast for this year.
Stretching the season past the first frost
With roughly 2 weeks until Midway's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/31 isn't a guarantee
05/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/23 and only about 1 year in 10 sees frost after that.
Midway against the rest of the dataset
Midway's growing season runs about 101 days, ranking 39,675 of 40,283 US ZIP codes measured here, longest to shortest. Within UT, it ranks 335 of 344.
Learn more
Before leaning on 84049's figures: zone vs. frost date explains why Zone 6a and Midway's frost date answer different questions, while the frost range explains how to read the range around Midway's dates instead of trusting one.