Murray, UT 84171 Frost Dates
When can you plant in Murray, UT?
Typically, the last spring freeze lands around 04/08, roughly 223 days out. The first fall frost typically arrives around 10/31, about 204 frost-free days later.
The USDA Plant Hardiness Zone Map puts Murray 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 Murray before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/08 isn't a guarantee
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 Murray compares
About 204 days separate Murray's last and first frost, putting it 16,491 of 40,283 ZIP codes nationally. Within UT, it ranks 58 of 344.
Learn more
local microclimates covers what one yard in Murray can differ from the 84171 normal. zone vs. frost date covers why Zone 7b and Murray's frost date answer different questions.