Ryan, OK 73565 Frost Dates
Frost dates for Ryan, OK, ZIP 73565
Around 03/29 is the usual last spring frost, about 213 days away. The first fall frost typically arrives around 11/05, about 223 frost-free days later.
Ryan sits in USDA Zone 8a (10 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 8a around Ryan 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.
How much risk comes with planting early here
03/29 is the middle of 30 years of NOAA records, not a promise. Plant by 03/08 and you're betting against frost in roughly 9 years out of 10. 04/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Ryan compares
About 223 days separate Ryan's last and first frost, putting it 12,105 of 40,283 ZIP codes nationally. Within OK, it ranks 111 of 764.
Learn more
the frost range explains how to read the range around Ryan's dates instead of trusting one, and local microclimates explains what one yard in Ryan can differ from the 73565 normal.