Kingston, WI 53939 Frost Dates
Frost dates for Kingston, WI, ZIP 53939
The last spring frost here typically falls around 05/06, about 251 days from today. The first fall frost typically arrives around 10/02, about 150 frost-free days later.
The USDA Plant Hardiness Zone Map puts Kingston in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 5a around Kingston has about 5 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 Kingston's last frost
05/06 is the middle of 30 years of NOAA records, not a promise. Plant by 04/22 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kingston compares
About 150 days separate Kingston's last and first frost, putting it 35,410 of 40,283 ZIP codes nationally. Within WI, it ranks 588 of 860.
Learn more
local microclimates explains what one yard in Kingston can differ from the 53939 normal, and zone vs. frost date explains why Zone 5a and Kingston's frost date answer different questions.