Geronimo, OK 73543 Frost Dates
Frost dates for Geronimo, OK, ZIP 73543
Typically, the last spring freeze lands around 03/26, roughly 210 days out. The first fall frost typically arrives around 11/06, about 225 frost-free days later.
The USDA Plant Hardiness Zone Map puts Geronimo in Zone 8a (10 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 8a around Geronimo has about 10 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 Geronimo's last frost
03/26 is the middle of 30 years of NOAA records, not a promise. Plant by 03/03 and you're betting against frost in roughly 9 years out of 10. 04/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Geronimo compares
About 225 days separate Geronimo's last and first frost, putting it 11,444 of 40,283 ZIP codes nationally. Within OK, it ranks 88 of 764.
Learn more
the frost range explains how to read the range around Geronimo's dates instead of trusting one, and local microclimates explains what one yard in Geronimo can differ from the 73543 normal.