Faith, SD 57748 Frost Dates
Frost dates for Faith, SD, ZIP 57748
Around 05/15 is the usual last spring frost, about 260 days away. The first fall frost typically arrives around 09/27, about 134 frost-free days later.
Faith sits in USDA Zone 4b (-25 to -20°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 4b around Faith 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.
The actual range around Faith's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Plant by 05/03 and you're betting against frost in roughly 9 years out of 10. 05/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Faith compares
About 134 days separate Faith's last and first frost, putting it 38,015 of 40,283 ZIP codes nationally. Within SD, it ranks 354 of 378.
Learn more
local microclimates explains what one yard in Faith can differ from the 57748 normal, and zone vs. frost date explains why Zone 4b and Faith's frost date answer different questions.