Dannebrog, NE 68831 Frost Dates
68831, near Dannebrog, NE: the frost window
Around 04/23 is the usual last spring frost, about 238 days away. Fall's first freeze usually shows up around 10/14, roughly 172 days after the last spring frost.
Zone 5b (-15 to -10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Dannebrog, not a forecast for this year.
Stretching the season past the first frost
Dannebrog's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 04/23 isn't a guarantee
04/23 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/07 and only about 1 year in 10 sees frost after that.
Dannebrog against the rest of the dataset
Dannebrog's growing season runs about 172 days, ranking 28,510 of 40,283 US ZIP codes measured here, longest to shortest. Within NE, it ranks 165 of 605.
Learn more
Two guides worth reading on 68831: the frost range, on how to read the range around Dannebrog's dates instead of trusting one, and local microclimates, on what one yard in Dannebrog can differ from the 68831 normal.