Park Ridge, WI 54492 Frost Dates
When can you plant in Park Ridge, WI?
The last spring frost here typically falls around 05/04, about 249 days from today. The first fall frost typically arrives around 10/07, about 155 frost-free days later.
The USDA Plant Hardiness Zone Map puts Park Ridge 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
About 6 weeks of growing season left in Park Ridge before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Park Ridge's last frost
05/04 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. 05/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Park Ridge compares
At roughly 155 frost-free days, Park Ridge places 34,076 of 40,283 ZIP codes in this dataset. Within WI, it ranks 444 of 860.
Learn more
zone vs. frost date covers why Zone 5a and Park Ridge's frost date answer different questions. the frost range covers how to read the range around Park Ridge's dates instead of trusting one.