Clinton, NE 57770 Frost Dates
Frost dates for Clinton, NE, ZIP 57770
Typically, the last spring freeze lands around 05/16, roughly 261 days out. The first fall frost typically arrives around 09/27, about 132 frost-free days later.
The USDA Plant Hardiness Zone Map puts Clinton in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 5a around Clinton has about 4 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.
How much risk comes with planting early here
05/16 is the middle of 30 years of NOAA records, not a promise. Plant by 05/03 and you're betting against frost in roughly 9 years out of 10. 05/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Clinton compares
At roughly 132 frost-free days, Clinton places 38,241 of 40,283 ZIP codes in this dataset. Within NE, it ranks 600 of 605.
Learn more
the frost range explains how to read the range around Clinton's dates instead of trusting one, and local microclimates explains what one yard in Clinton can differ from the 57770 normal.