Arthur, NE 69121 Frost Dates
Frost dates for Arthur, NE, ZIP 69121
The last spring frost here typically falls around 05/09, about 254 days from today. The first fall frost typically arrives around 10/03, 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 Arthur, not a forecast for this year.
What to do before the first frost
Zone 5b around Arthur 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.
The actual range around Arthur's last frost
05/09 is the middle of 30 years of NOAA records, not a promise. Plant by 04/29 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 Arthur compares
At roughly 144 frost-free days, Arthur places 36,474 of 40,283 ZIP codes in this dataset. Within NE, it ranks 566 of 605.
Learn more
local microclimates explains what one yard in Arthur can differ from the 69121 normal, and zone vs. frost date explains why Zone 5b and Arthur's frost date answer different questions.