Percy, IL 62272 Frost Dates
Percy, IL: when does the frost end?
The last spring frost here typically falls around 04/12, about 227 days from today. Fall's first freeze usually shows up around 10/22, roughly 191 days after the last spring frost.
Percy sits in USDA Zone 7a (0 to 5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 8 weeks until Percy's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/12 isn't a guarantee
04/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/29 and only about 1 year in 10 sees frost after that.
Percy against the rest of the dataset
At roughly 191 frost-free days, Percy places 20,843 of 40,283 ZIP codes in this dataset. Within IL, it ranks 455 of 1,548.
Learn more
Before leaning on 62272's figures: local microclimates explains what one yard in Percy can differ from the 62272 normal, while zone vs. frost date explains why Zone 7a and Percy's frost date answer different questions.