Arnold, NE 69120 Frost Dates
69120, near Arnold, NE: the frost window
Typically, the last spring freeze lands around 05/05, roughly 250 days out. Fall's first freeze usually shows up around 10/03, roughly 149 days after the last spring frost.
Zone 5a (-20 to -15°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 Arnold, not a forecast for this year.
Stretching the season past the first frost
Arnold's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/19 and only about 1 year in 10 sees frost after that.
Arnold against the rest of the dataset
Arnold's growing season runs about 149 days, ranking 35,552 of 40,283 US ZIP codes measured here, longest to shortest. Within NE, it ranks 531 of 605.
Learn more
Two guides worth reading on 69120: zone vs. frost date, on why Zone 5a and Arnold's frost date answer different questions, and the frost range, on how to read the range around Arnold's dates instead of trusting one.