New Harmony, UT 84781 Frost Dates
Frost dates for New Harmony, UT, ZIP 84781
Around 04/09 is the usual last spring frost, about 224 days away. The first fall frost typically arrives around 11/05, about 207 frost-free days later.
The USDA Plant Hardiness Zone Map puts New Harmony in Zone 6b (-5 to 0°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
Zone 6b around New Harmony has about 10 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around New Harmony's last frost
04/09 is the middle of 30 years of NOAA records, not a promise. Plant by 03/18 and you're betting against frost in roughly 9 years out of 10. 04/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Harmony compares
At roughly 207 frost-free days, New Harmony places 15,879 of 40,283 ZIP codes in this dataset. Within UT, it ranks 17 of 344.
Learn more
zone vs. frost date explains why Zone 6b and New Harmony's frost date answer different questions, and the frost range explains how to read the range around New Harmony's dates instead of trusting one.