Powers Lake, ND 58773 Frost Dates
Frost dates for Powers Lake, ND, ZIP 58773
Typically, the last spring freeze lands around 05/18, roughly 263 days out. The first fall frost typically arrives around 09/17, about 119 frost-free days later.
Zone 4a (-30 to -25°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 Powers Lake, not a forecast for this year.
What to do before the first frost
Zone 4a around Powers Lake has about 3 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
05/18 is the middle of 30 years of NOAA records, not a promise. Plant by 05/06 and you're betting against frost in roughly 9 years out of 10. 06/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Powers Lake compares
About 119 days separate Powers Lake's last and first frost, putting it 39,164 of 40,283 ZIP codes nationally. Within ND, it ranks 396 of 405.
Learn more
local microclimates explains what one yard in Powers Lake can differ from the 58773 normal, and zone vs. frost date explains why Zone 4a and Powers Lake's frost date answer different questions.