Broken Arrow, OK 74011 Frost Dates
When can you plant in Broken Arrow, OK?
Around 04/01 is the usual last spring frost, about 216 days away. The first fall frost typically arrives around 11/01, about 212 frost-free days later.
Broken Arrow sits in USDA Zone 7b (5 to 10°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
About 9 weeks of growing season left in Broken Arrow before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/01 isn't a guarantee
04/01 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. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Broken Arrow compares
About 212 days separate Broken Arrow's last and first frost, putting it 14,553 of 40,283 ZIP codes nationally. Within OK, it ranks 410 of 764.
Learn more
the frost range covers how to read the range around Broken Arrow's dates instead of trusting one. local microclimates covers what one yard in Broken Arrow can differ from the 74011 normal.