White Lake, SD 57383 Frost Dates
When can you plant in White Lake, SD?
The last spring frost here typically falls around 05/03, about 248 days from today. The first fall frost typically arrives around 10/05, about 153 frost-free days later.
Zone 5a (-20 to -15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for White Lake, not a forecast for this year.
What to do before the first frost
About 5 weeks of growing season left in White Lake before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around White Lake's last frost
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/20 and you're betting against frost in roughly 9 years out of 10. 05/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How White Lake compares
About 153 days separate White Lake's last and first frost, putting it 34,610 of 40,283 ZIP codes nationally. Within SD, it ranks 122 of 378.
Learn more
local microclimates covers what one yard in White Lake can differ from the 57383 normal. zone vs. frost date covers why Zone 5a and White Lake's frost date answer different questions.