Tulsa, OK 74105 Frost Dates
When can you plant in Tulsa, OK?
The last spring frost here typically falls around 03/30, about 214 days from today. The first fall frost typically arrives around 11/04, about 220 frost-free days later.
Tulsa 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 10 weeks of growing season left in Tulsa before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Tulsa's last frost
03/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/10 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tulsa compares
About 220 days separate Tulsa's last and first frost, putting it 12,659 of 40,283 ZIP codes nationally. Within OK, it ranks 144 of 764.
Learn more
zone vs. frost date covers why Zone 7b and Tulsa's frost date answer different questions. the frost range covers how to read the range around Tulsa's dates instead of trusting one.