Pinckneyville, IL 62274 Frost Dates
Pinckneyville, IL: when does the frost end?
Typically, the last spring freeze lands around 04/06, roughly 221 days out. Fall's first freeze usually shows up around 10/22, roughly 199 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Pinckneyville in Zone 7a (0 to 5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 8 weeks until Pinckneyville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Pinckneyville's last frost
04/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/22 and only about 1 year in 10 sees frost after that.
Pinckneyville against the rest of the dataset
Pinckneyville's growing season runs about 199 days, ranking 18,097 of 40,283 US ZIP codes measured here, longest to shortest. Within IL, it ranks 290 of 1,548.
Learn more
Before leaning on 62274's figures: local microclimates explains what one yard in Pinckneyville can differ from the 62274 normal, while zone vs. frost date explains why Zone 7a and Pinckneyville's frost date answer different questions.