Toledo, IA 52342 Frost Dates
Toledo, IA: when does the frost end?
Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/09, roughly 162 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Toledo 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
With roughly 6 weeks until Toledo's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/15 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/11 and only about 1 year in 10 sees frost after that.
Toledo against the rest of the dataset
About 162 days separate Toledo's last and first frost, putting it 31,752 of 40,283 ZIP codes nationally. Within IA, it ranks 699 of 1,042.
Learn more
Before leaning on 52342's figures: zone vs. frost date explains why Zone 5a and Toledo's frost date answer different questions, while the frost range explains how to read the range around Toledo's dates instead of trusting one.