Medicine Park, OK 73557 Frost Dates
Frost dates for Medicine Park, OK, ZIP 73557
The last spring frost here typically falls around 03/21, about 205 days from today. The first fall frost typically arrives around 11/12, about 234 frost-free days later.
Zone 8a (10 to 15°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 Medicine Park, not a forecast for this year.
What to do before the first frost
Zone 8a around Medicine Park has about 11 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
03/21 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Medicine Park compares
Medicine Park's growing season runs about 234 days, ranking 9,800 of 40,283 US ZIP codes measured here, longest to shortest. Within OK, it ranks 24 of 764.
Learn more
the frost range explains how to read the range around Medicine Park's dates instead of trusting one, and local microclimates explains what one yard in Medicine Park can differ from the 73557 normal.