Oklahoma City, OK 73107 Frost Dates
Frost dates for Oklahoma City, OK, ZIP 73107
Around 04/02 is the usual last spring frost, about 217 days away. The first fall frost typically arrives around 11/04, about 216 frost-free days later.
Zone 7b (5 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 Oklahoma City, not a forecast for this year.
What to do before the first frost
Zone 7b around Oklahoma City 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
04/02 is the middle of 30 years of NOAA records, not a promise. Plant by 03/14 and you're betting against frost in roughly 9 years out of 10. 04/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Oklahoma City compares
About 216 days separate Oklahoma City's last and first frost, putting it 13,668 of 40,283 ZIP codes nationally. Within OK, it ranks 305 of 764.
Learn more
the frost range explains how to read the range around Oklahoma City's dates instead of trusting one, and local microclimates explains what one yard in Oklahoma City can differ from the 73107 normal.