Orangeville, UT 84537 Frost Dates
Frost dates for Orangeville, UT, ZIP 84537
Around 05/18 is the usual last spring frost, about 263 days away. The first fall frost typically arrives around 09/27, about 128 frost-free days later.
Orangeville sits in USDA Zone 6a (-10 to -5°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
Zone 6a around Orangeville has about 4 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.
How much risk comes with planting early here
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 05/04 and you're betting against frost in roughly 9 years out of 10. 06/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Orangeville compares
Orangeville's growing season runs about 128 days, ranking 38,548 of 40,283 US ZIP codes measured here, longest to shortest. Within UT, it ranks 253 of 344.
Learn more
local microclimates explains what one yard in Orangeville can differ from the 84537 normal, and zone vs. frost date explains why Zone 6a and Orangeville's frost date answer different questions.