Rosendale, WI 54932 Frost Dates
When can you plant in Rosendale, WI?
The last spring frost here typically falls around 05/01, about 246 days from today. The first fall frost typically arrives around 10/11, about 163 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 Rosendale, not a forecast for this year.
What to do before the first frost
About 6 weeks of growing season left in Rosendale before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/16 and you're betting against frost in roughly 9 years out of 10. 05/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rosendale compares
At roughly 163 frost-free days, Rosendale places 31,456 of 40,283 ZIP codes in this dataset. Within WI, it ranks 237 of 860.
Learn more
local microclimates covers what one yard in Rosendale can differ from the 54932 normal. zone vs. frost date covers why Zone 5a and Rosendale's frost date answer different questions.