Menomonee Falls, WI 53051 Frost Dates
When can you plant in Menomonee Falls, WI?
The last spring frost here typically falls around 05/06, about 251 days from today. The first fall frost typically arrives around 10/08, about 154 frost-free days later.
The USDA Plant Hardiness Zone Map puts Menomonee Falls in Zone 5b (-15 to -10°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
About 6 weeks of growing season left in Menomonee Falls before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/06 isn't a guarantee
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. 05/25 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Menomonee Falls compares
At roughly 154 frost-free days, Menomonee Falls places 34,209 of 40,283 ZIP codes in this dataset. Within WI, it ranks 458 of 860.
Learn more
local microclimates covers what one yard in Menomonee Falls can differ from the 53051 normal. zone vs. frost date covers why Zone 5b and Menomonee Falls's frost date answer different questions.