South Salt Lake, UT 84199 Frost Dates
When can you plant in South Salt Lake, UT?
Around 04/08 is the usual last spring frost, about 223 days away. The first fall frost typically arrives around 10/31, about 204 frost-free days later.
The USDA Plant Hardiness Zone Map puts South Salt Lake in Zone 7b (5 to 10°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 9 weeks of growing season left in South Salt Lake before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/08 is the middle of 30 years of NOAA records, not a promise. Plant by 03/17 and you're betting against frost in roughly 9 years out of 10. 04/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How South Salt Lake compares
At roughly 204 frost-free days, South Salt Lake places 16,516 of 40,283 ZIP codes in this dataset. Within UT, it ranks 63 of 344.
Learn more
the frost range covers how to read the range around South Salt Lake's dates instead of trusting one. local microclimates covers what one yard in South Salt Lake can differ from the 84199 normal.