Presho, SD 57576 Frost Dates
Frost dates for Presho, SD, ZIP 57576
Around 05/06 is the usual last spring frost, about 251 days away. The first fall frost typically arrives around 10/07, about 154 frost-free days later.
The USDA Plant Hardiness Zone Map puts Presho in Zone 5a (-20 to -15°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 5a around Presho has about 6 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
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/23 and you're betting against frost in roughly 9 years out of 10. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Presho compares
Presho's growing season runs about 154 days, ranking 34,413 of 40,283 US ZIP codes measured here, longest to shortest. Within SD, it ranks 105 of 378.
Learn more
the frost range explains how to read the range around Presho's dates instead of trusting one, and local microclimates explains what one yard in Presho can differ from the 57576 normal.