Ralston, NE 68117 Frost Dates
Ralston, 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.
Ralston 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
With roughly 8 weeks until Ralston's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Ralston's last frost
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.
Ralston against the rest of the dataset
Ralston's growing season runs about 185 days, ranking 23,132 of 40,283 US ZIP codes measured here, longest to shortest. Within NE, it ranks 8 of 605.
Learn more
Before leaning on 68117's figures: local microclimates explains what one yard in Ralston can differ from the 68117 normal, while zone vs. frost date explains why Zone 6a and Ralston's frost date answer different questions.