Millcreek, UT 84148 Frost Dates
When can you plant in Millcreek, UT?
The last spring frost here typically falls around 05/07, about 252 days from today. The first fall frost typically arrives around 10/14, about 158 frost-free days later.
Millcreek sits in USDA Zone 7b (5 to 10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 7 weeks of growing season left in Millcreek before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/07 isn't a guarantee
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Millcreek compares
About 158 days separate Millcreek's last and first frost, putting it 32,873 of 40,283 ZIP codes nationally. Within UT, it ranks 175 of 344.
Learn more
local microclimates covers what one yard in Millcreek can differ from the 84148 normal. zone vs. frost date covers why Zone 7b and Millcreek's frost date answer different questions.