Hyannis, NE 69340 Frost Dates
Hyannis, NE: when does the frost end?
The last spring frost here typically falls around 05/12, about 257 days from today. Fall's first freeze usually shows up around 10/01, roughly 141 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Hyannis 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 5 weeks until Hyannis'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
05/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Hyannis against the rest of the dataset
Hyannis's growing season runs about 141 days, ranking 37,000 of 40,283 US ZIP codes measured here, longest to shortest. Within NE, it ranks 581 of 605.
Learn more
Before leaning on 69340's figures: zone vs. frost date explains why Zone 5a and Hyannis's frost date answer different questions, while the frost range explains how to read the range around Hyannis's dates instead of trusting one.