Peosta, IA 52068 Frost Dates
52068, near Peosta, IA: the frost window
Around 04/28 is the usual last spring frost, about 243 days away. Fall's first freeze usually shows up around 10/11, roughly 165 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Peosta in Zone 5a (-20 to -15°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
Peosta's growing season runs out in roughly 6 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Peosta's last frost
04/28 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Peosta against the rest of the dataset
At roughly 165 frost-free days, Peosta places 30,602 of 40,283 ZIP codes in this dataset. Within IA, it ranks 504 of 1,042.
Learn more
Two guides worth reading on 52068: local microclimates, on what one yard in Peosta can differ from the 52068 normal, and zone vs. frost date, on why Zone 5a and Peosta's frost date answer different questions.