Somers, IA 50586 Frost Dates
Somers, IA: when does the frost end?
The last spring frost here typically falls around 04/26, about 241 days from today. Fall's first freeze usually shows up around 10/10, roughly 167 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Somers 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 Somers's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 04/26 isn't a guarantee
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/06 and only about 1 year in 10 sees frost after that.
Somers against the rest of the dataset
About 167 days separate Somers's last and first frost, putting it 30,230 of 40,283 ZIP codes nationally. Within IA, it ranks 434 of 1,042.
Learn more
Before leaning on 50586's figures: local microclimates explains what one yard in Somers can differ from the 50586 normal, while zone vs. frost date explains why Zone 5a and Somers's frost date answer different questions.