Burke, SD 57523 Frost Dates
Frost dates for Burke, SD, ZIP 57523
The last spring frost here typically falls around 05/03, about 248 days from today. The first fall frost typically arrives around 10/10, about 159 frost-free days later.
Burke 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 Burke 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.
The actual range around Burke's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Burke compares
At roughly 159 frost-free days, Burke places 32,721 of 40,283 ZIP codes in this dataset. Within SD, it ranks 39 of 378.
Learn more
local microclimates explains what one yard in Burke can differ from the 57523 normal, and zone vs. frost date explains why Zone 5a and Burke's frost date answer different questions.