Endeavor, WI 53930 Frost Dates
When can you plant in Endeavor, WI?
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 Endeavor, not a forecast for this year.
What to do before the first frost
About 5 weeks of growing season left in Endeavor before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/03 isn't a guarantee
05/03 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Endeavor compares
About 153 days separate Endeavor's last and first frost, putting it 34,604 of 40,283 ZIP codes nationally. Within WI, it ranks 512 of 860.
Learn more
local microclimates covers what one yard in Endeavor can differ from the 53930 normal. zone vs. frost date covers why Zone 5a and Endeavor's frost date answer different questions.