Tripp, SD 57376 Frost Dates
Frost dates for Tripp, SD, ZIP 57376
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/07, about 158 frost-free days later.
Tripp sits in USDA Zone 5a (-20 to -15°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 5a around Tripp 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.
Why 05/01 isn't a guarantee
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tripp compares
Tripp's growing season runs about 158 days, ranking 33,103 of 40,283 US ZIP codes measured here, longest to shortest. Within SD, it ranks 51 of 378.
Learn more
local microclimates explains what one yard in Tripp can differ from the 57376 normal, and zone vs. frost date explains why Zone 5a and Tripp's frost date answer different questions.