Alma, NE 68920 Frost Dates
68920, near Alma, NE: the frost window
Typically, the last spring freeze lands around 04/25, roughly 240 days out. Fall's first freeze usually shows up around 10/14, roughly 170 days after the last spring frost.
Alma sits in USDA Zone 6a (-10 to -5°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
Alma'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.
How much risk comes with planting early here
04/25 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.
Alma against the rest of the dataset
Alma's growing season runs about 170 days, ranking 29,119 of 40,283 US ZIP codes measured here, longest to shortest. Within NE, it ranks 206 of 605.
Learn more
Two guides worth reading on 68920: the frost range, on how to read the range around Alma's dates instead of trusting one, and local microclimates, on what one yard in Alma can differ from the 68920 normal.