Oshkosh, NE 69148 Frost Dates
Frost dates for Oshkosh, NE, ZIP 69148
Typically, the last spring freeze lands around 05/07, roughly 252 days out. The first fall frost typically arrives around 10/09, about 154 frost-free days later.
Oshkosh sits in USDA Zone 5a (-20 to -15°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.
What to do before the first frost
Zone 5a around Oshkosh has about 6 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
05/07 is the middle of 30 years of NOAA records, not a promise. Plant by 04/25 and you're betting against frost in roughly 9 years out of 10. 05/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Oshkosh compares
About 154 days separate Oshkosh's last and first frost, putting it 34,389 of 40,283 ZIP codes nationally. Within NE, it ranks 478 of 605.
Learn more
local microclimates explains what one yard in Oshkosh can differ from the 69148 normal, and zone vs. frost date explains why Zone 5a and Oshkosh's frost date answer different questions.