Harrah, OK 73123 Frost Dates
When can you plant in Harrah, OK?
Around 04/02 is the usual last spring frost, about 217 days away. The first fall frost typically arrives around 11/05, about 217 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 Harrah, not a forecast for this year.
What to do before the first frost
About 10 weeks of growing season left in Harrah before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
04/02 is the middle of 30 years of NOAA records, not a promise. Plant by 03/12 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 Harrah compares
About 217 days separate Harrah's last and first frost, putting it 13,456 of 40,283 ZIP codes nationally. Within OK, it ranks 253 of 764.
Learn more
the frost range covers how to read the range around Harrah's dates instead of trusting one. local microclimates covers what one yard in Harrah can differ from the 73123 normal.