Lewellen, NE 69147 Frost Dates
Frost dates for Lewellen, NE, ZIP 69147
Around 05/09 is the usual last spring frost, about 254 days away. The first fall frost typically arrives around 10/02, about 144 frost-free days later.
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 Lewellen, not a forecast for this year.
What to do before the first frost
Zone 5b around Lewellen has about 5 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 05/09 isn't a guarantee
05/09 is the middle of 30 years of NOAA records, not a promise. Plant by 04/28 and you're betting against frost in roughly 9 years out of 10. 05/22 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lewellen compares
At roughly 144 frost-free days, Lewellen places 36,467 of 40,283 ZIP codes in this dataset. Within NE, it ranks 563 of 605.
Learn more
the frost range explains how to read the range around Lewellen's dates instead of trusting one, and local microclimates explains what one yard in Lewellen can differ from the 69147 normal.