Omaha, NE 68132 Frost Dates
Omaha, NE: when does the frost end?
Typically, the last spring freeze lands around 04/18, roughly 233 days out. Fall's first freeze usually shows up around 10/21, roughly 185 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Omaha 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 8 weeks until Omaha'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
04/18 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/05 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/30 and only about 1 year in 10 sees frost after that.
Omaha against the rest of the dataset
Omaha's growing season runs about 185 days, ranking 23,002 of 40,283 US ZIP codes measured here, longest to shortest. Within NE, it ranks 6 of 605.
Learn more
Before leaning on 68132's figures: local microclimates explains what one yard in Omaha can differ from the 68132 normal, while zone vs. frost date explains why Zone 6a and Omaha's frost date answer different questions.