Springville, UT 84603 Frost Dates
Springville, UT: when does the frost end?
Around 04/18 is the usual last spring frost, about 233 days away. Fall's first freeze usually shows up around 10/21, roughly 185 days after the last spring frost.
Zone 7a (0 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 Springville, not a forecast for this year.
Stretching the season past the first frost
With roughly 8 weeks until Springville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/18 isn't a guarantee
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Springville against the rest of the dataset
At roughly 185 frost-free days, Springville places 23,060 of 40,283 ZIP codes in this dataset. Within UT, it ranks 85 of 344.
Learn more
Before leaning on 84603's figures: the frost range explains how to read the range around Springville's dates instead of trusting one, while local microclimates explains what one yard in Springville can differ from the 84603 normal.