Cortland, NE 68331 Frost Dates
Cortland, NE: when does the frost end?
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/12, roughly 170 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Cortland in Zone 6a (-10 to -5°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 Cortland'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
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/09 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.
Cortland against the rest of the dataset
About 170 days separate Cortland's last and first frost, putting it 29,185 of 40,283 ZIP codes nationally. Within NE, it ranks 212 of 605.
Learn more
Before leaning on 68331's figures: the frost range explains how to read the range around Cortland's dates instead of trusting one, while local microclimates explains what one yard in Cortland can differ from the 68331 normal.