Edgewood, IA 52042 Frost Dates
Edgewood, IA: when does the frost end?
Around 05/08 is the usual last spring frost, about 253 days away. Fall's first freeze usually shows up around 10/01, roughly 146 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Edgewood in Zone 4b (-25 to -20°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 5 weeks until Edgewood's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 05/08 isn't a guarantee
05/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Edgewood against the rest of the dataset
Edgewood's growing season runs about 146 days, ranking 36,074 of 40,283 US ZIP codes measured here, longest to shortest. Within IA, it ranks 1,033 of 1,042.
Learn more
Before leaning on 52042's figures: the frost range explains how to read the range around Edgewood's dates instead of trusting one, while local microclimates explains what one yard in Edgewood can differ from the 52042 normal.