Black Creek, WI 54919 Frost Dates
Frost dates for Black Creek, WI, ZIP 54919
The last spring frost here typically falls around 05/04, about 249 days from today. The first fall frost typically arrives around 10/06, about 154 frost-free days later.
Zone 5b (-15 to -10°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 Black Creek, not a forecast for this year.
What to do before the first frost
Zone 5b around Black Creek has about 6 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
05/04 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. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Black Creek compares
At roughly 154 frost-free days, Black Creek places 34,355 of 40,283 ZIP codes in this dataset. Within WI, it ranks 488 of 860.
Learn more
the frost range explains how to read the range around Black Creek's dates instead of trusting one, and local microclimates explains what one yard in Black Creek can differ from the 54919 normal.